ESIE 2019: A Look Back at this Year’s Opening Ceremony

On May 18th, the 8th Energy Storage International Conference & Expo (ESIE) opened at the China National Convention Center in Beijing.  The event was led by the China Energy Research Society and organized by the China Energy Storage Alliance and Chinese Academy of Sciences Institute of Engineering Thermophysics.  Government leaders, senior executives, academic researchers, and media representatives all gathered for one of the biggest energy storage events of the year, discussing the industry’s latest development trends and challenges while lending insight into the future of energy storage.

CNESA General Secretary Liu Wei Hosted the Opening Ceremony

CNESA General Secretary Liu Wei Hosted the Opening Ceremony

The ESIE opening ceremony featured some of the leading representatives of China’s energy storage industry, including guests and leaders from the National Energy Administration, China Energy Research Society, Zhongguancun Management Committee, Chinese Academy of Sciences, and others.  China Energy Storage Alliance General Secretary Liu Wei served as host.

During his opening remarks, China Energy Research Society Vice Chairman and Former National Energy Administration Assistant Director Shi Yubo stressed the need for the energy storage industry to increase efforts in planning, technology innovations, and institutional reforms to overcome challenges in industry development. Shi Yubo highlighted three synchronous developments that the industry should strive for: first, a simultaneous focus on technological advancements with safe, reliable applications. Second, the construction of policy and market mechanisms with commercial development.  Third, the establishment of a recycling system in step with large-scale project development.  He expressed hope that industry stakeholders can do more to expand their modes of thinking, engage in deep discussion, and share valuable experiences, all of which will contribute to solving the major issues of the industry.

China Energy Research Society Vice Chairman and Former National Energy Administration Assistant Director Shi Yubo Delivers a Speech

China Energy Research Society Vice Chairman and Former National Energy Administration Assistant Director Shi Yubo Delivers a Speech

Chinese Academy of Sciences International Cooperation Department Assistant Director Wang Zhenyu expressed congratulations on the successful opening of ESIE 2019.  He highlighted the use of energy storage in solving issues with large-scale renewable integration, expanding distributed energy storage resources, and creating smart grids, stressing energy storage as a core technology for the energy revolution. The Chinese Academy of Sciences has devoted significant resources to research in energy storage technologies, including the support of international collaborative projects and talent plans related to energy storage.  The Chinese Academy of Sciences will continue to strengthen its research in energy storage technologies as well as international collaboration through the International Energy Storage Alliance, founded by the Chinese Academy of Sciences Institute of Engineering Thermophysics last year.

Chinese Academy of Sciences International Cooperation Department Assistant Director Wang Zhenyu Delivers a Speech

Chinese Academy of Sciences International Cooperation Department Assistant Director Wang Zhenyu Delivers a Speech

Representing the conference organizer, China Energy Storage Alliance Chairman Chen Haisheng expressed that in 2019, “spring had now arrived” for energy storage in China.  In the past year, over 13 provinces and regions have released policies in relation to energy storage, providing a big boost to the market.  Yet a multitude of challenges still lie ahead: a compensation mechanism for energy storage has not yet appeared, storage technologies must improve, and costs and safety issues must be addressed.

China Energy Storage Alliance Chairman Chen Haisheng Delivers a Speech

China Energy Storage Alliance Chairman Chen Haisheng Delivers a Speech

In 2018, the value of grid-side energy storage began to become more apparent.  Tsinghua University Department of Electrical Engineering Professor Xia Qing shared how energy storage has brought new flexibility, smart solutions, and economic benefit to the grid.  Continued development in grid-side energy storage requires institutional innovations and policy support, much of which must come from changes in the practices of investment bodies, T&D pricing, remuneration, and management.

China Southern Grid is one of the world’s leading constructors of MW-level energy storage projects, developing the Baoqing energy storage station in Shenzhen in 2011 and continually expanding their range of applications.  They have also been active participants in the drafting of many domestic industry standards. According to China Southern Grid Science & Technology Department Assistant Director Zhen Yaodong, energy storage in China currently lacks a suitable commercial model.  Energy storage has now become an indispensable tool for grid frequency regulation, but determining who must foot the bill for storage must be settled before the technology’s range of use can be expanded.

China State Grid is the leader in domestic grid-side storage. As China State Grid Dispatch Center Assistant Chief Engineer Pei Zheyi expressed, electrochemical energy storage has already been implemented at all segments of the electrical system.  It is predicted that by 2035, as renewables energy capacity continues to expand, renewables will surpass coal power to become the primary energy source for the entire country.  Energy storage can help improve the effectiveness of renewables in the grid, providing frequency regulation services for thermal power plants, black start capabilities, and other important services.

The United States is one of the world’s largest energy storage markets, expected to surpass 1 billion USD in 2019.  As Energy Storage Association CEO Kelly Speakes-Backman stated, in 2018, the United States energy storage market saw a newly installed capacity of 777 MWh, an increase of 80% from the previous year.  Following the release of FERC Order 841, ten U.S. states passed stimulus bills for energy storage, giving the industry an additional boost.  By 2025, the total accumulated U.S. energy storage capacity is expected to reach 35 GW.

Energy Storage Association CEO Kelly Speakes-Backman Delivers a Speech

Energy Storage Association CEO Kelly Speakes-Backman Delivers a Speech

Speaking for one of the world’s leading energy storage systems integrators, Sungrow Power Vice President Cheng Cheng shared his company’s thoughts on energy storage applications.  Reflecting on 2018’s growth, Cheng Cheng stated that China’s massive breakthroughs in energy storage capacity are inseparable from recent technology innovations.  However, if we wish to see further developments in the future, we must devote our skills to improvements in safety, policy, costs, peripheral technologies, and other issues.  From an applications standpoint, we now see energy storage coupling with a variety of other industries and systems, necessitating efforts to develop new applications scenarios and models.  Further breakthroughs in “Energy Storage+” applications would be a great boon for the industry.

China Energy Storage Alliance Research Department Director Yue Fen presented on energy storage industry growth in the previous year, stating, “in 2018, the global energy storage industry experienced a giant leap in growth.  Global new operational electrochemical energy storage project capacity totaled 3698.8 MW, an increase of 304.6% in comparison to 2017.  Of this new capacity, China’s new operational electrochemical energy storage capacity totaled 682.9 MW, an increase of 464.4% in comparison to 2017.  China’s increase was second only to that of South Korea.”  With costs continuing to drop and application scenarios expanding, CNESA predicts that in five years’ time, China’s electrochemical energy storage market will see even larger growth.

China Energy Storage Alliance Research Department Director Yue Fen Presents on the CNESA Energy Storage White Paper 2019

China Energy Storage Alliance Research Department Director Yue Fen Presents on the CNESA Energy Storage White Paper 2019

As the opening ceremony wrapped, ESIE organizers invited representatives from the National Development and Reform Commission, Ministry of Industry & Information Technology, National Energy Administration, regional energy management bureaus, China State Grid and its subsidiaries, China Southern Grid and its subsidiaries, generation companies, private energy storage enterprises, and other industry experts together for a closed-door energy storage leaders meeting. Representatives discussed such themes as support methods for energy storage commercialization policies and market mechanisms, increasing energy storage application and technology requirements, ways of guaranteeing safe and reliable energy storage systems, and other pressing industry topics.


Johnson Yu: Energy Storage Technology Costs Have Reached a Turning Point


In 2018, the Chinese energy storage industry welcomed tremendous new growth.  According to China Energy Storage Alliance Global Energy Storage Database statistics, as of the end of 2018, China’s accumulated operational energy storage projects totaled 31.3GW.  Of this total, electrochemical energy storage projects accounted for 1072.7MW, 2.8 times that of the total accumulated operational capacity of 2017.  Newly added capacity totaled 682.9MW, an increase of 464.4% from the previous year.

The primary reason for such fast-paced industry growth has been the recent launch of grid-side energy storage projects which have come about in part due an increasingly supportive policy environment.  With the help of the Guiding Opinions on Promoting Energy Storage Technology and Industry Development, many new projects have been put into operation.  Industry reforms have brought about the first trial spot markets, and more than 13 provinces and regions have released policies addressing the construction of ancillary services markets, attracting the attention of many energy storage companies and bringing new excitement to the market.

At the same time, the industry has yet to fully move out of the demonstration stage and standards are only beginning to take shape. Industry competition has increased, and project profits have shrunk dramatically as safety concerns become more prominent.  The industry is now having difficulty keeping up with the pace of its own development and is in desperate need of improved systems solutions and standardization.

In 2018, China’s economy began to slow.  The combination of industry structural adjustment, financial deleveraging, and the U.S.-China trade war have all affected the industry, weakening confidence in long-term investment in technologies and the future market. Many energy storage companies felt pressure in the second half of 2018 due to a variety of factors, including financing difficulties, project delays, changes in ownership, and corporate restructuring.

Such difficulties also brought new opportunities.  After the massive changes to the solar industry brought about by the “531” policy, some advanced solar technology companies actually saw their business increase, and many solar PV projects have already begun delivering electricity without feed-in-tariffs.  Much like solar PV, the price of energy storage batteries is dropping 20-30% each year.  In theory, as of 2018, energy storage technology costs have already reached their turning point.

As an emerging industry, once such a turning point has been reached, development is likely to reach unpredictable speeds, bringing as many opportunities as it does risks and challenges.  The best method for meeting such opportunities and challenges lies among companies themselves to strengthen their operations abilities and the quality of their technologies.  Pioneering companies must emphasize technological improvements, innovations, and integration techniques, or risk becoming left in the dust as competitors pass them by.

With technology costs now closing in on an ideal target, three pathways are forming:

The EV battery path, which views the lowest possible technology price as the ultimate benchmark.  We have already surpassed the frequently mentioned 1.5RMB/Wh turning point, and even lower prices are now being discussed, with 0.5-0.7RMB/Wh cell manufacturing costs already appearing, and prices as low as 0.3RMB/Wh possibly emerging this year.

The non-lithium-ion path, focused on power and/or hybrid applications, which includes a variety of physical and electrochemical energy storage technologies that have already become frontrunners for new applications in many power markets.

The hydrogen energy storage path, which has already shown significant progress along a similar path of development as EV batteries.

The pace in which policies and a market mechanism are being developed lags significantly behind the industry’s speed of growth.  The lack of policies helping to lower costs and manage system safety has been a longtime concern, and has been particularly apparent in its effect on the behind-the-meter storage applications which have led the industry’s development.  It is our hope that relevant agencies and parties can address fire safety regulations with more urgency, and that local governments can give deeper consideration to the design of policies related to the energy storage industry in the future.

In contrast to other energy industry sectors in which energy storage frequently collaborates, energy storage is a small-scale industry with an equally small voice.  We hope that the industry can come together to create a true market and push for the release of meaningful policies.  Though current market conditions may be frustrating, we must not get discouraged.

Internationally, many emerging markets have shown impressive growth, though in Europe and Asia, there are still many regions that have remained untouched.  We hope that companies that are up to the challenge can cross international borders and participate in the international competitive market.

2019 is likely to be an inspiring year.  In technologies, we have seen many new breakthroughs, including solid-state electrolyte technologies which have upgraded traditional lithium-ion batteries, developments in a wide variety of sodium battery technologies, new breakthroughs in flow battery and Li-ion hybridization, the launch of a variety of physical energy storage projects, and the ever-increasing speed of hydrogen technology development.

Energy storage technologies have demonstrated versatility to support the electricity system, solar PV, and electric vehicles.  Energy storage will become a key technology for the future integration of transportation and energy, and ending reliance on traditional fuel sources such as coal and oil. Energy storage will become increasingly valuable in new application scenarios, and is destined to become a key component of China’s energy system.

In policies and regulations, we hope to see relevant government bodies coming to a greater understanding of the difficulties the industry has faced as it has developed, and will release supporting policies and regulations that will better reflect the current industry conditions.

We hope to have more opportunities in the future to work together with colleagues at all levels of the energy industry to discover more areas of collaboration, overcome challenges, and create a bright future for both energy storage and the entire energy industry.

Author: Johnson Yu, Vice Chairman, China Energy Storage Alliance.
Translation: George Dudley

This article is comprised of excerpts from the CNESA 2019 White Paper introduction.

Regional Energy Storage Subsidies Bring Good News for Behind-the-meter Storage


On March 24, the Suzhou Industrial Park Administrative Committee released Measures for the Management of Special Guiding Funds for Green Development of Suzhou Industrial Park (苏州工业园区绿色发展专项引导资金管理办法). The measures outline subsidies to be used for energy saving modifications, cyclical economic measures, and Internet of Energy projects.  Subsidies are also provided for distributed natural gas generators and energy storage projects. As stated in the policy:

“Owners of natural gas generators and energy storage projects within the industrial park that have undergone pre-connection review, have connected to the grid, and are operational will receive a 3-year subsidy of 0.3 RMB for each kWh of electricity produced.”

Such a subsidy has big implications.  Until now, China’s energy storage industry has lacked a financing mechanism for energy storage, making future profitability unclear.  Industry stakeholders have for many years called for a financial subsidy that can help push the industry forward.  Suzhou has now been the first this year to release clear subsidy standards that are certain to have a positive effect on energy storage, particularly behind-the-meter storage systems.

However, Suzhou is not the first Chinese city to introduce a subsidy policy for energy storage.  In September 2018, Hefei released the Suggestions for Encouraging the Continued Healthy Development of the Solar PV Industry (关于进一步促进光伏产业持续健康发展的意见), which stated that solar-plus-storage projects put into operation after the release of the policy would, beginning in their second month of operation, receive a subsidy of 1 RMB for every kWh charged, with a limit of 1,000,000 RMB per project per year.

Cities like Hefei and Suzhou have begun to release such subsidy plans in response to policies that have caused I&C electricity fees to drop.  Such policies shrink the gap between peak and off-peak power prices, causing the demand for behind-the-meter energy storage projects to decrease.  Yet shrinking peak and off-peak price differences are not the only pressures that energy storage faces.

One example is Jiangsu.  In August 2018, State Grid Jiangsu revised the “Customer-side Energy Storage System Grid Connection Regulations” (客户侧储能系统并网管理规定), preventing behind-the-meter energy storage stations from feeding energy back into the grid. Engineering and construction of behind-the-meter systems must comply with multiple national standards for grid connection and system design, while information relating to energy storage systems must be submitted to State Grid Jiangsu’s monitoring and interaction platform.  For many companies, the entire process, including grid connection, safety inspection, permits, etc. can add an additional 200,000-300,000 RMB in costs to a project. Such policies are a hindrance to the development of the energy storage industry and the ability for projects to be profitable.

Suzhou’s energy storage subsidy is different from the Hefei subsidy in that instead of compensating based on amount of electricity charged, it instead compensates based on the amount of electricity released.  Compensating in this way supports battery products with higher charge/discharge efficiencies, giving them an advantage in the market that contributes to a healthy, competitive growth in the energy storage industry.

From its small beginning 8-9 years ago, to its recent growth spurt over the past two years, the growth of the Chinese energy storage industry has been carried by the behind-the-meter market.  According to CNESA statistics, in 2018, global newly added electrochemical energy storage project capacity was dominated by behind-the-meter storage at 1530.9MW, or 43% of the total.  Concentrated renewable integration and ancillary services held second and third places, respectively, at 26% and 17%.

Despite the large increase in capacity last year due to new, large-scale grid-side energy storage projects, behind-the-meter energy storage will undoubtedly continue to play a key role in capacity growth.  As one industry insider put it:

“China’s energy industry has developed thus far through the efforts of behind-the-meter storage developers.  If the Chinese energy storage industry is to truly stand on its own, behind-the-meter energy storage will be the driver.  National support, whether for electric vehicles or energy storage, is not guaranteed forever.  If the EV industry is to develop, it must do so with the support of the consumer.  If the energy storage industry is to develop, it is the behind-the-meter industry that must foot the bill.”

But this is also where the conundrum lies.  Behind-the-meter storage cannot expect to forever rely on subsidies, yet the current state of the industry necessitates them.  An appropriate subsidy can provide quick stimulation to market capacity while also providing a reasonable standard for projects to follow, awarding funds only to projects that are of good quality.

Of course, the major perquisite to a successful subsidy system is for the issuing region to possess solid financial strength. Besides Suzhou and Hefei, Beijing has been widely rumored to have a similar policy in the works.

From a national perspective, because energy storage is applicable to a wide variety of scenarios and many friendly industries are already receiving subsidies, it is unlikely that we will see a national-level subsidy in the future. At the 2018 Energy Storage 100 Lingnan forum in Shenzhen last December, a representative from China State Grid commented, “at this time, the national government is not going to release a comprehensive subsidy policy for energy storage, though they do support the creation of regional policies. However, such policies would inevitably lead to regional protectionism.”

Such regional protectionism could involve taxation, project developer registration, procurement of local equipment, etc. However, when considering the monumental challenges of how to guide and promote energy storage development, the possibility of regional projects coming with “strings attached” may not be an issue of great concern.

Author: Energy Storage 100
Translation: George Dudley

Understanding the “Notice on Developing Generation-Side Storage Stations in Xinjiang Province”


Last month Xinjiang Autonomous Region Development and Reform Commission released the Notice on Developing Generation-Side Storage Stations in Xinjiang Province.  The document states intention to “emphasize and encourage solar PV stations to incorporate storage systems, with a recommended installment of systems at a capacity 20% of that of the solar PV station.”  The notice also allows solar PV projects incorporating energy storage to produce an additional 100 hours of electricity annually.

Data on energy storage procurements from 2018 reveals that winning energy storage project bids averaged at approximately 2 RMB/Wh.  According to the Notice, a 10MW solar PV station adding energy storage capacity at 20%, or the equivalent of 2MWh, would require an initial investment of approximately 4 million RMB.

Currently, the Xinjiang region electricity settlement process is based on two factors, base load and traded electricity. Traded electricity accounts for the majority of settlement prices.  Base load prices average at approximately 0.25 RMB/kWh, while traded electricity prices hover between 0.05 RMB/kWh and 0.1 RMB/KWh.

The Notice states that solar PV projects adding storage can produce an additional 100 hours of electricity to the grid. Ideally, such additional electricity could be offered based on hourly power pricing.  If a power station does not install energy storage, the 100 hours of electricity could instead be offered through power trading.  If energy storage has been added, the actual power price would be determined by the difference between the base load price and traded electricity price, which would be between 0.15 RMB/kWh and 0.2 RMB/kWh.

If no additional fees are factored, then a 10MW solar PV station’s pre-tax annual profit can be calculated at a minimum of 150,000 RMB and maximum of 200,000 RMB.  The above-mentioned additional 100h of generation would also lower curtailment rates.  A portion of these 100 hours can be provided by or put towards energy storage, while the remaining can be put towards AGC frequency regulation.

Battery storage system rates of effectiveness will vary based on the type of system. For example, lead-carbon systems will have an efficiency of approximately 83%, while lithium-ion battery system efficiency is normally around 92%.  If we suppose that a Li-ion battery system is used, the depth of discharge will be approximately 90% (a 0.5C charge-discharge rate), therefore, a 2MWh energy storage system will have a daily one-time full charge/discharge capacity as follows:


For a 10MW capacity solar PV station, this equates to the addition of 1656/10000=0.1656h, for an annual total of 60.444h.  According to statistics, Xinjiang solar PV station losses due to curtailment or nonproduction average at around 135h.  This curtailed energy can instead be stored, and remaining energy can be put towards frequency regulation.  For solar PV stations in which nonproduction and/or curtailment rates are low, the above goals can still be met by using a smaller capacity storage system.

For a 4 million RMB investment with a minimum annual profit of 150,000 RMB and maximum annual profit of 200,000 RMB, a static payback period is likely to be between 20-26 years, not factoring in costs for storage system maintenance and battery replacement.  Therefore, in the eyes of developers, the payback period is considerably long, and such an investment may be stressful.

Article originally appeared on the Candela University official WeChat account



Exploring the 2018 Energy Storage Industry in 7 Words


At the start of each new year, the China Energy Storage Alliance looks back at the previous year’s global energy storage industry to reflect on some of the biggest trends and influential events that occurred.  In 2018, industries in South Korea, Canada, China, and other countries were marked by incredible growth in certain areas.  Yet globally, energy storage still faces challenges related to fire safety, market regulation adjustment, gaps in standardization, and other issues.  Below, CNESA has chosen seven words to explore the 2018 energy storage industry.


China’s grid-side storage took off in 2018 with the launch of a set of major projects.  First came the announcement of Jiangsu’s 101MW/202MWh grid-side energy storage project in East Zhenjiang, followed just a few months after with the Henan Grid Co. 100MWh project and the first phase of Hunan’s 120MWh project in Changsha. Jiangsu followed with an additional announcement of a set of projects procured by Pinggao Group totaling 352MWh.

This wave of new grid-side storage projects was the biggest since energy storage began developing in China 10 years ago, and caught the attention of many abroad. Though this substantial growth in grid-side storage is remarkable, it also makes the need for mature business models, safety standards, and system management mechanisms all the more urgent.


In February of 2018, the United States Federal Energy Regulatory Commission (FERC) passed the “Final Rule on Electric Storage Resource Participation in Markets Operated by RTO and ISOs,” requiring ISO distribution networks around the country to modify their market rules to allow energy storage to more easily connect to the grid.

The FERC ruling permits energy storage to participate in capacity, energy, and ancillary markets, a major step for energy storage in the United States.  The FERC ruling serves as a guide to market regulators around the world on how to modify regulations to better adapt the grid to energy storage and make use of energy storage’s full potential.


In November of 2018, clean energy generation company Tempus Energy launched the claim that the United Kingdom’s capacity market was biased in favor of large generators and discriminatory towards demand-side response.  A European court ruled in favor of Tempus, ordering the UK to cease its capacity auction.  The ruling brought the entire capacity market to a halt, with the capacity auction originally scheduled for early 2019 being suspended indefinitely.

The lack of capacity payments has had a significant effect on the earnings of UK energy companies Centrica, RWE, Uniper, SSE, and others.  Some companies have ceased their development of new battery energy storage projects.  Although the halting of the capacity market is not likely to pose any risk to the UK’s power supply, it is possible that generation companies may look to wholesale spot markets to make up the losses in the capacity market, which could lead to prices increases in the wholesale spot market.


In January 2018, the California Public Utilities Commission (CPUC) gave PG&E permission to use four energy storage projects to replace natural gas peaker plants.  The four projects each used four-hour Li-ion battery systems, altogether totaling 567.5MW in capacity.

Although in 2016 California regulators had launched a bill to increase the speed of battery storage procurement as a means to reduce the state’s reliance on natural gas, these four projects were California’s first instance of using battery storage to replace active natural gas generators.  The decision shows that the costs for an energy storage project’s full life cycle can now compete with natural gas generators, and possibly even hold a competitive advantage over natural gas generators.


In October 2018, the World Bank announced 1 billion USD in funding for its “Accelerating Battery Storage for Development” plan, to be used for investment in battery energy storage in developing and middle-income countries.

The plan will mobilize an additional 4 billion USD in social capital to provide funding for 17.5GWh of battery storage by 2025, equivalent to over three times the approximately 4-5GWh of energy storage presently installed across all developing countries.


As of December 2018, South Korea has experienced a total of 16 battery energy storage station fires.  The new incident brought the world’s attention once again to the issue of energy storage system safety.  The South Korean government has responded by requiring storage system installers to utilize stricter safety measures, including increase use of monitoring systems and other measures.

Increasing safety measures will also lead to an increase in system costs and provide additional burden to already pricey renewable energy, leading to predictions that in the short term, South Korea may lose motivation to expand additional utilization of renewables.


In November 2018, after a successful first round of testing, the South Australia government partnered with Tesla to launch the second phase of the South Australia Virtual Power Plant (VPP).  The second stage will require 1000 homes to install solar PV panels and Tesla Powerwall home energy storage systems.  According to CNESA tracking of global VPP projects, multiple companies providing behind-the-meter energy storage products in Australia, Germany, Japan, the United States, and China have been actively exploring “cloud platform” models to provide customers with added value to their services.

Hopes for 2019

In 2019, the China Energy Alliance hopes for an increase in project applications across new scenarios, and improvements in storage business models, management mechanisms, and relevant market regulations that will help storage to not only compete in a fair market but also receive reasonable compensation. We also hope for increased capital in the storage market that will motivate project development. In regards to safety issues, we hope that measures can be taken that will be both objective and rational, and that safety standards can be defined as soon as possible in order to ensure the sustainable, safe development of energy storage systems.

Author: Cao Zhengxin

Translation: George Dudley

New Edition of “Two Regulations” Released in Northwest China Region


Recently, the Northwest China Energy Regulatory Bureau officially released the long-awaited updated editions of the Regulations for Operations and Management of Grid-Connected Power Stations in Northwest Regions and Regulations for Ancillary Services Management of Grid-Connected Power Stations, often referred to as the “Two Regulations.”  At the Energy Storage West Forum last August, representatives from the Northwest China Energy Regulatory Bureau gave a brief introduction to the revisions.  Below is a summary of their comments from the forum:

The “Two Regulations” were originally enacted in October 2015 and have been in place now for three years.  The release of these regulations was met with much enthusiasm.  In the first half of 2018, the five provinces in the northwest grid were penalized 1.7 billion RMB, compensated 2.77 billion RMB, and showed a service cost allocation/split of 1.16 billion RMB.  These proportions represent the largest of any grid.  From an operations standpoint, not all provinces are the same.  One example is Qinghai province.  As of May 2018, penalties to the Qinghai power grid totaled 85.3 million RMB, with their AGC project responsible for the largest portion of these penalties at 52.99%.  Primary frequency response provided the highest portion of compensation of any project, at 50%.

Revisions to the “Two Regulations” began in 2017.  The reasons for the revisions were based on a few different factors.  First, we wished to increase content on safety in light of new national and industry standards.  Second, we wished to create equal obligations and rights.  The previous regulations focused primarily on the penalization system for renewable energy, with little focus on compensation.  The new regulations make an effort to place importance both on penalization and compensation.  Third was the desire to increase management of peak shaving, including adapting and revising regulations to meet the needs of ancillary services marketization across different provinces.

Currently, there are a few different ways in which the “Two Regulations” relates to energy storage in ancillary services.  First is in peak shaving.  Each province with a peak shaving market has different standards for providing compensation, though when storage is used solely for peak shaving, the rate of return on the initial investment is slow.  Second is in AGC frequency regulation.  In practice, the Northwest power grid leads thermal power plants to invest in AGC based on the frequency of the T&D lines and does not use a model similar to the Huabei Power Grid’s kd value to calculate contributions, instead penalizing or compensating based on a power credit system.  Third is the operations management for renewable energy.  Because the capacity of renewables in the grid continues to grow, dispatch and operations for renewable energy must be improved in order to guarantee system safety, stability, and the maximum use of renewable power.  Renewable energy power stations that contribute to the grid should also receive appropriate compensation.  With these revisions enacted, we will provide a transitional period, allowing renewable energy companies time to adjust to the updates and meet system operation needs.

Author: CNESA Research

Navigant Research’s Global Solar-Plus-Storage Vendor Roundup

In October 2018, Navigant Research released its “Leaderboard: Residential Solar PV Plus Energy Storage Providers” report.  The report analyzes the top 12 most active current global residential solar-plus- storage vendors according to their strategies and implementation.  The report scores the companies according to 12 factors, including vision, go-to market strategies, partnerships, production strategies, technologies, geographic reach, sales, marketing and distribution, product performance, product quality and reliability, product portfolio, pricing, and staying power.  Combining statistical analysis with the scores for each company, Navigant released a top 10 list of global residential solar-plus-storage providers.  The purpose of the list is to provide industry members with an objective review of the strengths and weaknesses of these global residential storage suppliers.

Navigant asserts that residential customers have begun turning away from the traditional purchasing of power from utilities to the using of power generated on-site.  Navigant predicts that in the next 10 years, global new deployments of residential solar and storage projects will reach 37.4GW.  Navigant also stresses three factors that they believe will helps drive the development of energy storage over the next few years:

Source: Navigant Research

Source: Navigant Research

Energy storage combined with solar PV can solve problems that solar PV systems on their own cannot.  Independent solar PV systems can only generate electricity when sufficient sunlight is available, therefore it is unable to provide many services that other power generation resources can.

Over the past five years, solar PV and energy storage installation costs have dropped considerably. It predicted that costs will continue to drop, particularly for residential solar and storage systems. Solar and storage systems that have had their performances verified can help bring solar and storage hardware and software resources to compete in the global retail power market.

Residential solar, energy storage, and other resources can integrate using virtual power plant networks, allowing distributed energy resources to be dispatchable, saving on electricity costs, decreasing intermittency issues, and providing grid services.

Within Navigant’s rankings, Sunrun placed first.  According to Navigant’s analysis, Sunrun is the only company to show outstanding performance in both strategy and implementation, with a strong customer base and a number of verified systems in the market.  Tesla and Vivint Solar followed closely behind, though ranked lower in sales, vision, and market attractiveness.  SolarWorld and SolarWatt have also been consistent challengers, though their products have not yet demonstrated strong business case examples.

According to Navigant’s analysis, the top 10 global residential energy storage providers include Sunrun, Tesla, Vivint Solar, E.on, Sunpower, Sunplug, Sunnova, Huawei, Soligent, and ZenEnergy.

To learn more about Navigant and access the report, view the official press release here.

A Summary of Energy Storage Development in the First Half of 2018

Electrochemical Energy Storage Maintains Rapid Growth

According to the CNESA Global Energy Storage Database, in the first half of 2018, global newly operational electrochemical energy storage project capacity totaled 697.1MW, an increase of 133% from the same time the previous year, and an increase of 24% since the end of 2017.  China’s newly operational electrochemical energy storage project capacity for the first half of 2018 totaled 100.4MW, 14% of the total new global capacity.  This new capacity reflected an increase of 127% from the previous year, and an increase of 26% since the 2017 year’s end.

Figure 1: global new operational electrochemical energy storage project capacity (2018.H1, MW)

Figure 1: global new operational electrochemical energy storage project capacity (2018.H1, MW)

Figure 2: China’s new operational electrochemical energy storage project capacity (2018.H1, MW)

Figure 2: China’s new operational electrochemical energy storage project capacity (2018.H1, MW)

In comparing by distribution of technologies, in both global and Chinese markets, newly added energy storage capacity was dominated by Li-ion batteries, at 99% and 94% of the total, respectively.  In applications, ancillary services dominated the global market’s new energy storage capacity, at 51%, while China’s market saw grid-side energy storage dominate, at 42%.  In a regional comparison, the United Kingdom showed the greatest increase in both newly added capacity and in comparative growth with the same time the previous year (2017.H1).  The United Kingdom’s newly added capacity totaled 307.2MW, nearly 45% of the global market, an increase of 441% in comparison to 2017.H1.

Figure 3: distribution of global operational electrochemical energy storage by application (2018.H1, MW)

Figure 3: distribution of global operational electrochemical energy storage by application (2018.H1, MW)

Figure 4: distribution of China’s operational electrochemical energy storage by application (2018.H1, MW)

Figure 4: distribution of China’s operational electrochemical energy storage by application (2018.H1, MW)

Figure 5: global distribution of operational electrochemical energy storage by region (2018.H1, MW)

Figure 5: global distribution of operational electrochemical energy storage by region (2018.H1, MW)

Global Competitors Release Large-Scale Energy Storage Projects

At the end of 2017, Tesla launched its 100MW/129MWh Li-ion battery project in Southern Australia. Following the launch of this system, many other countries followed with their own large-scale energy storage systems, with many in the 100MW and above range (see chart below).  Energy storage is being recognized by increasing numbers of countries as a reliable and flexible source of energy.

Chart: Representative Examples of Large-Scale Energy Storage Projects

Source: CNESA Data Collection

Source: CNESA Data Collection

Domestic Grid-Side Storage Projects See Large-Scale Development

In the first half of 2018, Jiangsu and Henan provinces led the way in large-scale grid-side energy storage projects. Both provinces launched similar projects consisting of a total of over 100MW of distributed energy storage stations deployed near a series of substations.  Project investors included State Grid subsidiaries such as Xuji Group, Shandong Electrical Engineering, Jiangsu Energy Services Co, and Pinggao Group, as well as battery manufacturers ZTT, eTrust, CLOU, Lishen, and Narada, and additional PCS and BMS suppliers.  Though development on the projects has been vigorous and reactions have been positive, questions such as whether the business model will be replicable and what kind of investment returns can be expected will depend on whether the industry will continue to develop at a large scale.

The Question of Safety

The fire at South Korea’s South Jeolla wind farm battery storage system once again brought attention to the energy storage system safety.  Unstandardized installation and use of battery systems can have disastrous consequences, yet current standards are still incomplete and/or flawed, in dire need of update and clarification.  Despite these issues, we cannot deny the value of energy storage applications.  The energy storage industry must grapple with the challenge of how to clarify storage standards without hindering the development of the industry, a question that is worthy of further discussion and exploration amongst industry leaders.

Major Energy Companies Update Storage Business Models

Many traditional energy companies have begun turning their business activities towards renewable energy in response to global energy trends.  For some companies, this means establishing new renewable energy operations, while for others it means the acquisition of smaller renewable energy companies.  Many traditional energy companies have also looked for outstanding renewable energy companies for business collaboration, making use of each other’s advantages for mutual benefit.  Some energy storage companies have begun reforming their business practices to better fit market needs, striving to become more economical and effective and make better use of their advantages.  For example, S&C has discontinued manufacture of PCS, instead choosing to focus on microgrid and grid-scale energy storage system aggregation.  Mercedes-Benz has discontinued manufacture of its residential storage batteries, focusing instead on grid-scale energy storage applications.  Finally, Younicos has introduce its “storage-as-a-service” model to meet the immediate energy storage needs of customers.

National and Regional Support in Response to the Guiding Opinions

Following the October 2017 release of the Guiding Opinions on Promoting Energy Storage Technology and Development a number of new policy efforts have appeared at both the national and regional levels that support the goals of the Guiding Opinions.  These include such policies as the Bijie City Energy Storage Industry Development Plan (Draft), Regulations for Operations and Ancillary Services Management of Grid-Connected Energy Storage Stations in Southern Regions, North China Ancillary Services Market Establishment Plan (Draft), standards for lead-carbon batteries and Li-ion batteries used in energy storage systems, and many other recent policy measures that have helped to stimulate the domestic energy storage market.

Author: Ning Na
Translation: George Dudley

A Look at China’s 2018 New Market Competitors


According to statistics from CNESA’s Global Energy Storage Project Database, in the first half of 2018, China’s new operational electrochemical energy storage capacity totaled 100.4MW, an increase of 127% from the same time the previous year.  Newly added electrochemical projects either planned or under construction totaled 2251.1MW.  With the scale of energy storage projects rapidly increasing, the market has seen a number of new players eager to make their name in a variety of energy storage applications.

I.       Frequency Regulation/Ancillary Services

Combined thermal power and energy storage frequency regulation projects continue to thrive in 2018 through the activities of numerous market competitors:

1.       WLY Group (万里扬集团有限公司)

In June, WLY group won a bid to supply Guangdong Yudean Power Generation Co. with a 9MW/4.5MWh combined thermal generation and energy storage frequency regulation project.  The winning bidder is responsible for engineering that includes equipment and debugging, electrical testing, grid connection, etc.  Construction on the project began in July.  The project signifies WLY Group’s formal entrance into the ancillary services market.  WLY was China’s first auto transmission company to go public.  The company provides transmissions for use in passenger cars and commercial vehicles, as well as drive systems for electric vehicles and interior components.

2.       Huatai Energy (Beijing) Tech.Co.,LTD (华泰慧能(北京)能源技术有限公司)

In August, Huatai Energy won an EPC bid to supply Inner Mongolia Power Generation Co. (IMEIGC) with a 9MW/4.5MWh frequency regulation project.  The project distributes shared earnings from AGC compensation. Huatai Energy was founded in 2016 and specializes in energy storage technologies.

3.       Zhejiang Wanke Renewable Energy Technology Co. (浙江万克新能源科技有限公司)

In May, Inner Mongolia Power Generation Investment Group announced the candidates for bidding on the new 9MW/4.5MWh frequency regulation project at the Wusitai thermal plant.  Wanke beat out both Narada and Shenzhen Advanced Clean Energy Technology Research Co. for the bid.  According to publicly released information on the tender, although Wanke’s proposed cost of 39,800,000 RMB for the project was higher than Narada’s proposed 37,500,000 RMB, Wanke’s proposal of a 50-50 share of investments return with the plant owner went far beyond the traditional return of 70-80% for the investor and 20-30% for the plant owner.  Wanke Renewable Energy was founded in 2015.  This project is the first domestic energy storage project for the company.


II.       Behind-the-meter

Wiscom (江苏金智竞泰储能科技有限公司)

In August, Wiscom released plans to construct a 500kW/1000kWh behind-the-meter energy storage system at the Huitong screw factory in Qidong.  The project is a collaborative development between Wiscom, the Huitong screw factory, and State Grid Jiangsu Energy Services Co.  Wiscom is an energy storage company formed in June of this year by a cooperative investment of 50,000,000 RMB between four energy companies.


III.       Grid-side

1.        Golmud Meiman Renewable Energy Technology Co. (格尔木美满新能源科技有限公司)

In July, Golmud Meiman begin construction of its 16MW/64MWh grid-side energy storage project at the Haixi 110KV Baiyang substation.  The project is the first grid-side energy storage project lead by State Grid Qinghai, and the first grid-side project for Golmud Meiman.

2.       Xi’an Actionpower Electric Co.,Ltd.  西安爱科赛博电气股份有限公司

In August, Henan Power Grid announced a call for bids for the second round of equipment purchases for its 100.8MW/100.8MWh battery storage demonstration project.  This second round of bids seeks 59 sets of energy storage equipment.  Bidders during the first round included well known energy storage companies such as EVE, ZTT, and Lishen, among others.  During this second round of bidding, Actionpower submitted bids to supply four containerized energy storage systems at the Xinyang energy storage station.  The company’s total bidding was more than 900,000 RMB lower than that of EVE.   Actionpower was founded in 1996.  The company is currently expanding from its main business focus of power inverters and power control products to explore renewable energy and smart microgrid technologies.  Actionpower’s bid for the Xinyang energy storage power station marks the company’s first foray into energy storage.


Active players in the 2018 energy storage market include specialized energy storage companies such as Huatai Energy and Wiscom, as well as companies heavily involved in renewable energy and/or the power industry that have recently begun expanding into energy storage activities, such as Golmud Meiman, Vanke Renewables, and Actionpower.  Other new players even include electric vehicle manufacturers such as WLY Group that have begun investing in storage projects.

In terms of market strategies, these players have frequently used low-costs to gain an advantage in the market.  These competitors have expanded the traditional project earnings models while exploring new and varied storage business models

Author: Cao Zhengxin
Translation: George Dudley

CNESA Hosts its First Webinar Event: Introducing the California Energy Storage Market


On September 5, the China Energy Storage Alliance Held its first webinar event, “Introducing the California Energy Storage Market.”  The hour-long webinar was hosted by George Dudley of CNESA, with guest panelists Melanie Davidson, Director of Marketing at Strategen Consulting, and Terry Maddox, Principal Manager of Generation for Eastern Operations at Southern California Edison. The webinar content included an overview of the California energy storage market, an introduction to SCE’s Center Hybrid energy storage facility, and highlights from the upcoming Energy Storage North America conference.   

Melanie Davidson begin the webinar by providing background on the current state of California’s energy storage market, highlighting some of the factors that have contributed to the growth of energy storage in the state.  California currently possesses 717MW of operational energy storage capacity, with 463 MW of approved additional capacity on the way.  Northern California electricity provider PG&E has also recently announced a procurement target of 567MW of energy storage, the largest such procurement goal ever released.  Recent government developments of note include SB 700, a bill that will continue funding for SGIP until 2025, providing an additional 800 million USD of funding for storage incentives in California.  The bill has already passed the state senate and is currently waiting for approval by governor Jerry Brown. An additional bill of note awaiting approval is SB 100, landmark legislation to commit California to 100% renewable energy by 2045. Should both bills be approved by the governor, California can expect to see significant growth in both front-of-the meter and behind-the-meter energy storage systems.

Melanie also provided information on the Energy Storage North America 2018 conference, to take place this November 6-8 in Pasadena.  The event will feature three days of forums, workshops, and expo events.  Pre-conference workshops include “Energy Storage 101,” “Trends in the Electric Power Industry and the Growing Role for Energy Storage,” “Best Practices in Utility Procurement of Energy Storage,” and others.  The seven forum tracks include such themes as “Mobility and Storage,” “Advanced Solutions,” “Microgrids, Resiliency, and Security,” and “North American Market Transformation.”  This year’s site tour program includes 8 different centers and installations, including Proterra’s West Coast Battery-Electric Bus Manufacturing Facility, the Romeo Power Manufacturing Facility, LADWP Beacon Solar Plant and Beacon Energy Storage System, and a variety of other tours.  The ESNA conference is one of the largest energy storage events in North America, and the can’t-miss event for industry members.  More information on the event can be found on the official website at

Terry Maddox of Southern California Edison followed with an introduction to SCE and in-depth look at the Center Hybrid facility.  Southern California Edison is one of the largest electricity providers in California, providing 87TWh of energy annually to 15 million customers.  The Center Hybrid facility combines a 10MW/4.3MWh battery energy storage system with a 50MW traditional gas-fired peaking unit.  The facility cuts down on greenhouse gases, provides 50MW of operating reserve, instant response, primary frequency response, and black start capabilities.  The battery component helps lower fuel consumption, reduces system costs, and increases customer value.  The Center Hybrid facility is one of two such systems, both of which have been extremely successful so far.  Following Terry’s presentation, the webinar concluded with a brief question and answer session.

The webinar event also served to highlight CNESA’s planned visit to the Energy Storage North America Conference in November 2018.  CNESA will be bringing a group of China’s energy storage industry delegates to the Los Angeles area November 5-12 to participate in the ESNA forum and expo events, while also touring additional sites in the Los Angeles area.  The event hopes to provide opportunity for exchange between industry members in the United States and China, fostering understanding of the most recent updates in the global energy storage markets, and building new international business relationships.

China Energy Storage Alliance hopes to host more webinar events in the future, providing a chance for our energy storage colleagues in China and abroad to connect with one another and learn more about the latest energy storage technology, applications, and market trends around the world.

Click below to view the recording of the webinar:

Four Storage Companies of Note in the First Half of 2018

CNESA’s Industry Tracking Database reveals four companies that have made significant advancements in energy storage projects and new business activities in the first half of 2018: eTrust, Narada, CLOU, and CATL.  Below, we examine some of the highlights of each company’s new progress in energy storage.

eTrust: An Energy Storage “Upstart” Comes Out Ahead


On July 18, China’s largest scale battery energy storage station, the Jiangsu Zhenjiang grid-side 101MW/202MWh project, began operation.  Of the 8 energy storage stations constructed as part of the project, eTrust, China Aviation Lithium Battery, CATL, Guoxuan, and ZTT each won bids to provide lithium ion battery systems.  Of these, eTrust provided the largest battery, at 40MW/80MWh, nearly 40% of the project’s total capacity.

As a Zhenjiang based company, eTrust possessed a geographic advantage during the bidding process.  More importantly, the company also possesses top lithium ion battery technology and a body of experience initiating successful projects.  eTrust was established in Zhenjiang in June of 2016 as a holding company of CITICPE. Despite being a relatively young company, eTrust has already established 7 centers for manufacturing and R&D.  eTrust’s project experience includes the Yangyi solar-plus-storage project in Tibet, a 52.8MWh grid-side battery project in Ontario, Canada, and a 9MWh grid-side energy storage project in Irvine, California.  With the Zhenjiang grid-side battery project now added to its list of successful projects, eTrust has become a major energy storage player in just two years.

Narada Power: Frequent Winner of Behind-the-Meter Storage Projects and Collaborator on New Initiatives


According to CNESA’s Project Tracking Database, of newly operational electrochemical energy storage projects in 2017, Narada Power supplied the largest capacity, the majority of which was concentrated in behind-the-meter applications.  In the first half of 2018, Narada’s behind-the-meter storage maintained this momentum, with the company participating in a variety of projects.  Most of these projects were distributed across Jiangsu province and utilized the company’s “investment-plus-operations” model.  The Zenith Group 400MWh energy storage station is currently Narada’s largest contracted singular project, and has been a great achievement in the use of large-scale energy storage for commercial applications.  In addition, the Jiangsu Grid Corportation’s efforts to curb summer electricity peak prices in eastern Zhenjiang has also relied on the use of behind-the-meter energy storage projects powered primarily by Narada Power’s lead-carbon batteries, with over 500MWh being put to use.

In the first half of the year, Narada has also established strategic partnerships with other companies.  One example is Narada’s energy storage partnership with China Resources Power.  The partnership includes cooperation on power sales and purchases, construction of a microgrid storage system, and development of incremental distribution and storage.  Narada has also partnered with State Grid EV Service on a number of projects and initiatives, including promotion of the National Grid Energy Storage Cloud Service, exploration of new business models, demand response dispatch, green energy trading, ancillary services for grid stability, safety, and reliability, and orderly development of the grid system.

CLOU Electronics: A Major Player in the “Thermal Plant Plus Energy Storage” Frequency Regulation Service


According to statistics from the CNESA Project Tracking Database, as of the 2017 year’s end, China had in operation three combined thermal plant and energy storage projects, one of which included CLOU Electronics’s 9MW/4.478MWh project at the Tongda power plant in Shanxi.  In the first half of 2018, CLOU continued to develop its combined thermal plant and storage frequency regulation, engaging in a total of 90MW of projects across Shanxi, Inner Mongolia, Hebei, and Guangdong provinces.  These projects include the Guangdong CR Power Haifeng 30MW/14.93MWh frequency regulation project, which surpassed the Inner Mongolia 18MW/9MWh Shangdu power plant project as the largest thermal power plant plus energy storage frequency regulation project.

CLOU has potential to lead the country in the “thermal plant plus energy storage model.”  CLOU has already developed components such as energy storage batteries, BMS, PCS, EMS, and other key technologies while also providing systems integration services, allowing the company to provide a full range of storage solutions. With provinces such as Shanxi and Guangdong beginning to release market regulations that allow energy storage to take part in frequency regulation services, CLOU now has more opportunities to put its technological knowledge and project experience to work in new storage markets.

CATL: Working to Solidify the EV Battery Business While Advancing Grid-Side Energy Storage

CATL 2.png

In the first half of 2018, CATL continued to expand the EV battery business that it is most known for.  In March, CATL launched its IPO, with plans to raise 13.12 billion RMB, add 24GWh of production capacity, and invest 4.2 billion RMB in R&D for two projects the Huxi lithium-ion battery production plant project and an EV and energy storage battery research project.

While CATL expands its EV battery business, it has also made new strides in energy storage.  The company has recently begun exploring grid-side storage, including the Jinjiang Li-ion energy storage project.  The three stage project plans to begin with a system of 100 MWh, expanding to 500 MWh and finally 1000 MWh in the third stage.  The project is largely intended to support the Quanzhou city power grid dispatch, providing ancillary services for the local network.  CATL also won a bid to provide a grid-side energy storage project to eastern Zhenjiang, providing a 10MW/20MWh Li-ion energy storage system for the Xinbai storage station.

Aside from experimenting with renewable integration and behind-the-meter storage, CATL has also explored other applications.  The independent energy storage station in Jinjiang is the first time the company has tried grid-side energy storage.  With the continued development of electric vehicles and the energy storage market, CATL’s advanced battery technology is more than likely to continue expanding its energy storage into new and diverse areas.


The projects developed by eTrust, Narada Power, CLOU Electronics, and CATL in the first half of 2018 were largely concentrated in grid-side, behind-the-meter, and ancillary services applications.  In terms of technology, lead-carbon batteries and Li-ion batteries were most frequently utilized in the first half of 2018.  Geographically, Jiangsu province lead the way in both number of new projects and total new capacity, reflecting how the province’s energy storage industry has benefited from policy support as well as its energy arbitrage system for industrial customers.

The strong market in the first half of 2018 will hopefully carry into the year’s second half, bringing further development to behind-the-meter, grid-side, and ancillary services applications.  As electricity reforms continue to advance, energy storage will have more opportunities to participate in the electricity market, helping to build greater confidence among vendors.

Author: Cao Zhengxin
Translation: George Dudley

Large-Scale Energy Storage Projects Around the Country Suggest 2018 Will See a Surge in Energy Storage Growth


China’s energy storage market saw a boost of policy support in 2017, from the release of the first national-level policy on energy storage—the Guiding Opinions on Promoting Energy Storage Technology and Industry Development—as well as regional energy storage policies such as those released in Jiangsu province, China Southern Grid, and others.  According to the CNESA research department’s domestic energy storage market tracking, the first half of 2018 saw the announcement of new energy storage project construction in Jiangsu, Henan, Qinghai, and Guangdong provinces.  These projects varied in scale from tens of megawatts to hundreds, and altogether totaled 340.5MW (including those projects planned, under construction, and already operational).  This combined new capacity nearly equaled the country’s total accumulated operational capacity of 389.4MW at the end of 2017 (source: CNESA Global Energy Storage Database). Thus far, 2018’s newly operational capacity has already achieved growth 281% higher than that of the entire 2017 year.  If the entirety of this new capacity begins operation on schedule, China’s domestic energy storage market will see an amount of growth that will make 2018 one of the most significant years yet for the industry.

When it comes to electricity, Jiangsu, Henan, Qinghai, and Guangdong provinces differ in a variety of ways, including power structure, power consumption, electricity pricing, distribution of resources, and policy support.  Such differences have naturally influenced the ways in which these provinces have implemented energy storage.

Jiangsu: Grid-side and Behind-the-meter Energy Storage Projects Work Together to Alleviate Zhenjiang’s Summer Power Loads

In response to Jiangsu province’s supply-side structure reforms and to implement the province’s “263 plan,” three generators of the Jianbi power station--totaling 33,000 kW--were shut down in 2017, having reached their age limits1. The Jianbi power station provides power to Danyang, Yangzhong, Zhenjiang New District, and other regions of eastern Zhenjiang. The shutdown of these generators left this area with a significant power shortage. With summer loads increasing each year, the eastern region was faced with unprecedented peak load pressure this summer.

In light of these challenges, in May of 2018, State Grid Jiangsu Energy Service Co., Xuxu Group, and Shandong Electric together initiated plans for the construction of large scale grid-side and behind-the-meter storage projects in eastern Zhenjiang.  The projects capitalized on energy storage’s short construction period, flexible deployment, rapid response time, and other advantages to effectively reduce pressure on the grid.  Grid-side projects included eight energy storage power stations equipped with lithium iron phosphate batteries at a total scale of 101MW/202MWh.  Providers include ZTT Energy Storage, CLOU, eTrust, and other domestic companies.  Behind-the-meter storage has largely been supplied by Narada’s lead-carbon batteries at a total capacity exceeding 500MWh.

Henan: Developing the First Large Scale Grid-Side Energy Storage Project in the Central Region

Henan is one of central China’s major provincial power consumers.  The province possessed 66,570 MW of thermal generation capacity at the end of 2017, the fifth largest in the country.  To better adapt to new energy trends and promote the transition to new energy systems, Henan province released two policies in 2017, the Henan Province Energy Development Program for the “Thirteenth Five-Year Plan”  and the Henan Province Development Plan for the Energy Transition.  These policies highlight the use of renewables in the next generation of energy development, avoiding fossil fuels and promoting the construction of wind power projects and greater exploitation of solar power. The policies also explore the creation of ancillary service markets, encourage increased investment in grid infrastructure, and show support for the development of a national electricity spot market. Energy storage in Henan province has great development potential in wind power, integrated solar, frequency regulation, peak shaving, and T&D deferral.

In the second quarter of this year, Henan Grid experimented with its first megawatt scale grid-side battery storage project.  The project is currently Henan’s largest battery storage project, as well as one of China State Grid’s three largest storage projects of the 2017 year. The project is spread across 16 substations in 9 regions and can be charged during non-peak hours and release energy during peak periods.  The project also provides stability for wind and solar power and increases the efficiency of grid operations.  So far, two calls for bids have been announced, calling for capacity of 90MW/90MWh.  Companies including Lishen, Narada, and CLOU have submitted bids.  Of these bids, the Huanglong substation and Longshan substation projects have already begun operations.


Qinghai: Energy Storage Technology Supports Wind and Solar Resources

Qinghai possesses plentiful solar and wind resources with great potential for development.  Solar energy provides a potential 3 billion kilowatts of power, while wind resources provide a potential 75 million kilowatts.  Solar power has already become the second largest source of electricity in Qinghai, after hydroelectric power.  However, the large-scale addition of these resources to the grid has also brought safety and stability concerns, wind/solar curtailment issues, and problems related to the coordination of multiple clean energy resources.  Energy storage can help combat these problems by serving as a supporting technology, with enormous development potential for renewable integration, solar and wind curtailment reduction, frequency regulation/ancillary services, and other applications.

Huanghe Hydropower has been a leader in the clean energy industry.  The company’s efforts to develop diversified models for clean energy and create large-scale solar and wind power stations have also begun to include energy storage.  In June of this year, Huanghe Hydropower’s 1000 MW combined hydro-solar-wind demonstration project successfully connected to the power grid.  The project also included a 20MW/16.7MWh energy storage component.  In addition, Huanghe Hydropower has recently released calls for bids for energy storage support for 45 thousand kilowatts of wind power in Gonghe county and 10 thousand kilowatts of wind power in Wulan county.  The company has called for 45MW/90MWh and 10MW/20MWh of energy storage capacity, respectively.  The projects will rely on a variety of storage technologies, including lithium iron phosphate batteries, lithium ion batteries, zinc bromine flow batteries, and vanadium flow batteries.

Guangdong: Opening the Door for China Southern Grid’s Thermal Power and Storage Frequency Regulation

Shanxi has consistently lead the way in China’s combined “thermal power plus storage” frequency regulation model.  By the end of 2017, Shanxi had initiated a total of three thermal power plus storage frequency regulation projects, the only operational projects of their type in China at the time.  Two of the projects were developed by Ray Power and one was developed by CLOU.  The total storage capacity of the three projects equaled 9MW/4.5MWh.  Apart from Shanxi, Inner Mongolia and Hebei also began involvement in thermal power plus storage frequency regulation projects, the largest of which was CLOU’s  18MW/9MWh frequency regulation storage project in Inner Mongolia.  The combined thermal plant generator and energy storage system provides frequency regulation services, improving the frequency regulation capabilities of the thermal generator, reducing the risk of receiving penalties, and providing financial benefit to the plant.

Starting in Guangdong province, China Southern Grid has begun experimenting with power market reforms, including reforms to the ancillary services market.  Southern Grid has released the Guangdong Frequency Regulation Market Transaction Regulations (Trial) and begun trial operations, allowing third party ancillary services providers and generation companies to take part in the ancillary services market.  In the second quarter of this year, following Shanxi, Inner Mongolia, and Hebei provinces, Guangdong announced four “thermal power plant plus energy storage” combined frequency regulation projects at a combined capacity of 57MW/28.5MWh.  The largest of these plants is the CLOU project at the China Resources Power plant in Haifeng with a capacity of 30MW/15MWh.  Guangdong has become the first China Southern Grid region and the fourth province nationwide to develop a combined thermal power plant and energy storage frequency regulation project.


Storage projects in the four provinces above have been noteworthy for their harnessing of a variety of energy storage technologies, including lithium ion batteries, lithium iron phosphate batteries, lead carbon batteries, vanadium flow batteries, and zinc bromine flow batteries.  In addition, apart from the typical energy storage applications in renewable integration, frequency regulation, and behind-the-meter applications, Jiangsu and Henan provinces were the first in the nation to release 100 megawatt level grid-side projects, providing promise for future large-scale grid-side projects in other regions and perhaps nationwide.

The Jiangsu and Henan grid-side applications also exemplify the role of grid companies as key users of energy storage technologies. Although market mechanisms are still taking shape and the full value of energy storage applications have not yet been recognized, enthusiasm from grid companies is a positive signal providing energy storage companies with confidence.  At the same time, these projects also provide a variety of real-life data for market regulation policymakers, providing support for the growth of the energy storage market across the country.

1The “263 Plan” is an initiative implemented by the Jiangsu provincial government and Suzhou city government to meet the central government’s environmental protection requirements and promote the construction of practical and environmentally friendly infrastructure.

Author: Ning Na
Translation: George Dudley

China’s First “Grid-Side Distributed Energy Battery Storage Station” Completes Successful Grid Connection


On June 18th, 2018, Henan Power Grid’s 100 MW energy storage demonstration project—the Luoyang Huanglong station containerized battery storage project—completed its successful connection to the grid.  The project marks a critical step for grid-side distributed battery storage in China.  The project will provide Henan Power Grid with load shifting services and promote the use of renewable energy within the grid.  The project is the first grid-side 100 MW scale distributed battery storage demonstration in China.

The grid faces a number of challenges, including the rapid addition of renewable energy, ensuring safe operations, finding suitable peak shaving methods, and financing of new construction.  Large-scale battery storage provides response time in milliseconds, providing safe and speedy power support to the grid.  Battery storage also provides new strategies for peak shaving and limiting air pollution, and can increase the efficiency in which energy is utilized in a variety of ways.

The Henan Power Grid project has been led by the Pinggao Group (a subsidiary of China State Grid) with construction by Luoyang Power Supply company.  The project includes 16 substations in nine regions, including Luoyang and Xinyang.  The plan utilizes distributed deployment, modular design, independent connections, and centralized dispatch. 

Now that the project has successfully connected to the grid, Pinggao Group is expected to increase project construction speed to complete the remaining project components. The project is scheduled to be fully complete before the end of 2018.  Pinggao Group has in recent years been an active promoter of large-capacity battery storage technology and innovative business models.  The successful implementation of the Henan Grid project will be an important trial for the use of large-capacity distributed battery storage, and a significant contribution to the goals of the Guiding Opinions on Promoting Energy Storage Technology and Development.  The project creates a basis for commercialized applications and sustainability in the power grid, and is an important step for China in the advancement of the energy revolution and energy internet development.

China Energy Storage Alliance Joins ADB Asia Clean Energy Forum 2018


The Asian Development Bank held its annual Asia Clean Energy Forum 2018 the week of June 4-8 at ADB headquarters in Manila, Philippines.  The forum, one of the largest clean energy events in Asia, featured a wide variety of presentations, discussion sessions, and deep dive workshops covering a diverse range of themes such as Innovations in Energy Efficiency, Innovations in Renewable Energy, and Increasing Energy Access.  The event was attended by over 1,000 guests from throughout the Asia-Pacific region.

The China Energy Storage Alliance is proud to have taken part in the “Battery Energy Storage Technology for Clean Energy” Deep Dive Workshop held on June 8th.  CNESA representative George Dudley delivered a presentation introducing China’s energy storage market and policy environment.  Representatives from the India Energy Storage Alliance and Korea Battery Industry Association also delivered presentations providing background on the energy storage policy environments in their own countries. In addition to energy storage policy, other forum themes included economics & financing, grid applications (such as frequency regulation and demand response), and renewable integration.  Over a dozen expert presenters from the non-profit and private sectors shared their knowledge and experience on battery energy storage.


Since 2006, the Asia Clean Energy Forum has been bringing together clean energy experts, developers, policymakers, non-profit organizations, and more.  Learn more about the ACEF conference at the official website.  The China Energy Storage Alliance, the first non-profit dedicated to energy storage in China, was founded in 2010.  Representing over 200 member organizations from all aspects of the energy storage industry, CNESA serves as the voice of energy storage across China.  CNESA’s own International Conference and Expo is held in May of each year. 

ESIE 2018 Media Report – Which Energy Storage Application has the Greatest Prospects for the Future?

Author: DiDi Beijixing Energy Storage Online


In recent years, the value of energy storage has become increasingly clear, whether in behind-the-meter, ancillary services, renewable integration, or other applications.  Yet when it comes to economic benefits, energy storage business models are still in an exploratory stage.  There are still many questions to be answered. What direction can energy storage develop in in the future?  How do we uncover energy storage’s potential? The author visited the 7th annual Energy Storage International Conference and Expo (ESIE 2018) to learn more about the future of energy storage in China.

According to statistics from the CNESA Global Energy Storage Project Database, as of the 2017 year’s end, China’s total operational energy storage capacity totaled 28.9GW, an increase of 19% from the previous year.  Pumped hydro energy storage made up the majority of this capacity, at nearly 99%. Electrochemical energy storage capacity totaled 389.8MW, an increase of 45% from the previous year. In a comparison of new electrochemical energy storage capacity by applications, in 2017, behind-the-meter energy storage made up 59% of the total of new applications.  Renewable integration came in second at 25% of the total new applications.

Energy Storage Provides New Energy with “Value-Added Services”

As the use of New Energy sources continues to increase, the energy structure faces a transformation.  In the future, as solar, wind, hydro, and other New Energy sources occupy a major portion of China’s energy supply, energy storage will be an important part of the country’s entire energy industry. In recent years, China has promoted multi-energy systems, wind+storage/solar+storage, and other demonstration projects.  Energy storage not only contributes to a more effective use of energy, decreasing wind and solar curtailment, it can also stabilize power generation, increase the quality of electric energy, and contribute to the balancing of grid loads.

Take solar PV as an example.  In its earliest stages, the manufacturing costs for solar PV were high, and companies focused most of their efforts on lowering such production costs and technology R&D.  With the maturation of the market and technological breakthroughs, solar energy manufacturing costs fell rapidly, bringing about opportunities for energy storage.  Energy storage can help to improve the quality of PV electricity and ease pressure on the grid.  Currently, there are many solar+storage projects in operation which help to prove through practice the value of energy storage in new energy grid integration.

Once such project is located in Shaanxi.  In 2017, Shaanxi Province’s Dingbian County achieved a total installed PV capacity of 1500MW.  In 2016, the county’s solar curtailment rate was near 10%.  The 10MWh Dingbian Li-ion battery system’s load shifting program brought relief to the curtailment issue.  The project utilized Dynavolt’s MW-scale container-style battery module technology.  Operating in conjunction with the PV station, the battery absorbs excess power, activating based on PV power prices, providing load shifting services and contributing to use of local power.

Marketization is the Outlet for Energy Storage in the Grid

The five stages of the power system—generation, transmission, transformation, distribution, and end use—all can experience the value of energy storage.

In electricity generation, energy storage can participate in ancillary services such as frequency regulation and peak shifting.  However, China’s ancillary services market is still in an exploratory stage, and questions such as proper pricing and transaction mechanisms have not yet been resolved.  While some companies have implemented frequency regulation projects, many energy storage enterprises planning to join the ancillary services market are still waiting and watching the market from afar. At present, the most frequent approach to frequency regulation is through energy storage combined with thermal generators.  As individual regions build their own ancillary services markets, energy storage in the form of peak shifting and frequency regulation has a strong chance at commercialization.

Amongst energy storage in ancillary services projects, Beijing Ray Power has created a combined energy storage and thermal generator system which functions as a new frequency regulation source that not only resolves the slow adjustment time, delays, and potential for errors of traditional thermal generators, but also removes the difficulty of adding frequency regulation to the grid due to energy (KWh) limits on energy storage. One example is the Jinneng Group’s 9MW solar-thermal power plant in Shanxi that links energy storage with frequency regulation.  The system relies on a thermal generator coupled with a 9MW/4.5MWh energy storage system. The remodeled generator system has an improved AGC frequency regulation performance factor Kp of nearly 5.0.  The energy storage system’s round cycle efficiency is nearly 88%, while the power plant’s AGC frequency regulation compensation helps create profit, bringing great benefit to the company.

The transmission and transformation side of electricity is unlikely to see energy storage applications in China.  The size and relative staunchness of the Chinese power grid in comparison to those of other countries means that energy storage opportunities in China’s transmission and transformation will be unlikely for the next few years.

Power distribution, as many know, is one of the weaker components of China’s power system.  One example is Guangdong, where numerous areas of the province have suffered from low voltage problems in distribution and transformation, leading to significant customer complaints.  Such incidents brought energy storage into focus.  However, according to insider information, the cost for a new energy storage system would be at least twice as much as that for transformer and line upgrades.  Such costs are a difficult challenge for energy storage, but if over time the costs of energy storage batteries decreases, power distribution is certain to be a large market for energy storage.

Behind-the-meter energy storage made up the majority of 2017’s new energy storage capacity in China.  No matter if used for load shifting or demand management, the value of behind-the-meter storage has already been proven.  From the point of view of businesses, the most common profit point lies in energy arbitrage.  Yet relying completely on arbitrage is not enough to bring out the complete value of energy storage.  Even extremely low costs will not be enough to bring out the best regulatory functions of energy storage.

Narada Power’s smart energy storage power station at the Wuxi-Singapore Industrial park serves as a demonstration of energy storage capabilities.  The station is powered at 20MW, and total capacity of 160MWh.  The facility is currently the world’s largest commercialized energy storage power station in operation.  Each day, the facility can provide the industrial park with 20,000KVA of load adjustment during peak periods, lowering the burden on the industrial park’s substations and transformers and eliminating the need for transformer upgrades.

Second-Life Usages for EV Batteries are Another Driving Force for Energy Storage


In 2017, over 777,000 new energy vehicles were sold.  According to predictions, China will soon be facing a large wave of battery retirement.  China has already released a number of policies to stimulate the development of the battery retirement industry.  Recycling of retired batteries can be done in one of two ways, either through disassembly of the battery or through second-life applications.  Second-life applications have several advantages.  Currently, the cost of new battery production is high, a major factor limiting the widespread deployment of energy storage.  Second-life usages help lower the initial construction costs for energy storage systems, while at the same time being environmentally friendly and having a positive socioeconomic value.

In recent years, many domestic and international agencies have undertaken second-life applications research.  In China, there have been three main industry groups that have engaged in such research.  The first is electric vehicle manufacturers, such as BYD and BAIC BJEV.  The second group is energy storage customers, such as China Tower and grid companies.  The final group is third-party energy storage groups such as Shanghai GMDE.  Internationally, the main participants in second-life battery research are car manufacturers.

Second-life EV battery projects have already been successfully launched in China.  In February 2018, Shanghai NIO completed construction of two second-life energy storage power stations.  Beijing Pride Power complete a MWh-level second-life battery system, the first application of its kind in China.  The system uses retired vehicle battery packs (lithium-iron phosphate batteries), a bidirectional PCS, and connects to the end-user distribution network through a low-to-medium voltage distribution room.

Second-life applications can lower the investment costs of new projects and shorten the return period.  Although many companies have already become involved in second-life applications, there are still many areas that require exploration and improvement:

1.       Safety Considerations – early model batteries suffer from relatively low performance and were not designed with recycling in mind.  Designs also vary greatly in size and parameters, and it can be difficult to trace complete information on the batteries.  These and other concerns create large safety issues for second-life battery usages.

2.       Technological Considerations – second-life EV batteries must go through testing, disassembly, reassembly, and other stages.  Currently, the testing process suffers from a lack of advanced technology and standards.  Most testing is done by hand, and early stage batteries do not have a unified standard for testing, creating difficulties in the reassembly of batteries.

3.       Cost Considerations – EV battery disassembly, testing, and reassembly cost a great deal in resources and manpower.  Without developed technologies for such processes, many companies face added costs for second-life battery projects.

As EV battery retirement increases, and with the support of national policies, second-life batteries are destined to become a thriving market.

Increased policy support and continued research breakthroughs lowering the cost of energy storage are helping to develop the energy storage industry in a positive direction.  Whether in microgrids, ancillary services, spot markets, or any other field, the future of energy storage looks bright.

Ukrainian Parliamentary Delegation Visits Chinese Academy of Sciences to Discuss Energy Storage


On May 8th, 2018, the China Energy Storage Alliance and Chinese Academy of Sciences warmly welcomed a group of delegates from the parliament of Ukraine for a visit to the Chinese Academy of Sciences Institute of Engineering Thermophysics research base in Langfang, China.  The visit included a tour of the research base’s compressed air energy storage system, followed by presentations and a roundtable discussion.  The event was co-organized by the China National Complete Engineering Corporation and the China Energy Storage Alliance.  CNESA member organizations including vice chair member Shoto Group, Ray Power, Puneng Energy, ZTT, and Sungrow-Samsung were in attendance to meet and discuss with the delegation.


The Ukrainian delegation was led by Mr. Oleksandr Dombrovskyy, Vice Chairman of the Committee on Fuel and Energy Complex, Nuclear Policy and Nuclear Safety of the parliament of Ukraine.  Mr. Dombrovskyy was accompanied by four additional parliament members as well as a delegate from the Ukrainian embassy.  The purpose of the event was to help the Ukrainian government understand China’s energy storage industry and to introduce the Chinese energy storage products and technologies that are currently available. The meeting also helped the Chinese companies in attendance to understand the Ukrainian energy system and the market potential for energy storage in Ukraine.

The initial tour of the compressed air storage system was led by Dr. Zhang Xinjing, who introduced the system to the delegation and answered their questions regarding the technology.  The tour was followed by presentations and discussion.  China Energy Storage Alliance General Secretary Liu Wei delivered a presentation introducing the development of the global energy storage industry.  Dr. Tang Xisheng, General Manager of Shoto Group, introduced his company’s lead-carbon battery technology and its applications.  Guo Jintao, New Energy Products Sales Manager for ZTT’s International Division, delivered a presentation on his company’s Li-ion batteries and their applications.  The final presentation was delivered by Dr. Zhang Xinjing, who first provided an introduction to the Chinese Academy of Sciences Institute of Engineering Thermophysics before describing the development of compressed air energy storage research.  The meeting concluded with a Q&A session between the Chinese and Ukrainian guests.


This initial meeting served as a starting point for what is sure to be further cooperation and exchange in energy storage between Ukraine and China.  Both sides hope to continue to work closely to find ways in which China’s energy storage technologies and resources can contribute to the development of Ukraine’s energy system.

International Energy Storage Alliance Founding Ceremony Held at ESIE 2018

On April 2, the official founding ceremony for the International Energy Storage Alliance was held at the National Convention Center in Beijing.  The INESA is led by the Chinese Academy of Sciences Institute of Thermophysics and is supported by the Birmingham University Energy Storage Center, the China Energy Storage Alliance, and other international energy storage technology research bodies and industry groups.  The founding ceremony, co-sponsored by the Chinese Academy of Sciences Institute of Thermophysics and the China Energy Storage Alliance, received support from the Chinese Academy of Sciences International Cooperation Department, the Beijing Science and Technology Cooperation Center, and the China Energy Research Society.  Over 300 representatives from government, industry, and research institutions were in attendance for the ceremony.

China Energy Storage Alliance Chief Supervisor Zhang Jing Hosts the Foundation Ceremony

China Energy Storage Alliance Chief Supervisor Zhang Jing Hosts the Foundation Ceremony

International Energy Storage Alliance Chairman Chen Haisheng Delivers Welcome Address

International Energy Storage Alliance Chairman Chen Haisheng Delivers Welcome Address

The INESA foundation ceremony was hosted by CNESA Chief Supervisor Zhang Jing. INESA Secretary General and Chinese Academy of Sciences Institute of Thermophysics Vice Director Chen Haisheng provided the initial welcome remarks, speaking on the alliance’s background, goals, and development plan.  The Chinese Academy of Sciences International Cooperation Department International Organizations Office Director Feng Kai delivered heartfelt congratulations to the INESA on its founding and praising the Chinese Academy of Sciences for its efforts.  Her speech also emphasized the Chinese Academy of Sciences' pledge to increase support for energy storage technology research and industry development, foster the growth of the INESA, contribute to the global spread of green energy, lessening of air pollution, and battling of climate change.

China Energy Research Society General Secretary  Zheng Yuping Delivers a Speech

China Energy Research Society General Secretary  Zheng Yuping Delivers a Speech

Chinese Academy of Sciences International Cooperation Department International Organizations Office Director Feng Kai Delivers a Speech

Chinese Academy of Sciences International Cooperation Department International Organizations Office Director Feng Kai Delivers a Speech

China Energy Research Society General Secretary Zheng Yuping delivered a speech on the industrialization of energy storage technologies and research, highlighting the use of energy storage for reduction of emissions and adding renewable energy to the grid.  As China's energy think tank, the China Energy Research Society will continue to support the energy storage industry, and provide as many resources as possible to support the International Energy Storage Alliance.

Chinese Academy of Sciences Institute of Thermophysics Director Zhu Junqiang followed with a speech on behalf of the Institute of Thermophysics welcoming the experts and leaders in attendance and expressing gratitude to the new organizations and experts joining the alliance.  The speech emphasized cooperative activities between INESA members, including collaborative strategies for creating breakthrough technologies around the world, establishment of energy storage demonstration projects, and promoting continued energy storage and renewable energy growth globally.

INESA Representative Professor Ding Yulong of Birmingham University Delivers a Speech

INESA Representative Professor Ding Yulong of Birmingham University Delivers a Speech

INESA Representative Gary Yang, Founder and CEO of UET Technologies, Delivers an Address

INESA Representative Gary Yang, Founder and CEO of UET Technologies, Delivers an Address

The Official Founding of the International Energy Storage Alliance

The Official Founding of the International Energy Storage Alliance

Birmingham University Energy Storage Center Director Ding Yulong, UET Technologies Founder and CEO Gary Yang, and DNV GL Chief Consultant George Garbandic also delivered speeches congratulating the foundation of the INESA and expressing support for continued progress towards its goals.

Introducing CNESA’s “ES Research” Products and Services


Since 2011, the China Energy Storage Alliance’s research department has been focused on energy storage industry research and information consulting services.  After seven years of experience researching energy storage development and tracking industry trends, CNESA’s research department is proud to officially announce its “CNESA ES Research” brand, providing specialized energy storage research products and services.

ES Research includes four product and service types, including the Global Energy Storage Database, Energy Storage Industry Tracking, Special Reports on the Energy Storage Industry, and the Research Consulting Service.  Of these products, the Global Energy Storage Database and Energy Storage Industry Tracking are featured on the official ES Research website: Below is an introduction to each service:

The Global Energy Storage Database: the Global Energy Storage Database is divided into five separate categories: the Energy Storage Project Database, Energy Storage Policy Database, Energy Storage Manufacturer Database, Market Data Analysis, and Global Energy Storage Market Tracking

  • The Energy Storage Project Database features a continuously updating collection of global energy storage projects, providing data on location, scale, technology type, application type, and other detailed information.  As of the end of 2017, over 1500 energy storage projects were collected in the database. 
  • The Energy Storage Policy Database focuses on the development of the Chinese energy storage industry, collecting not only national and regional policies related to energy storage, but also tracking policies related to electricity reforms, renewable energy use, new energy vehicles, demand-side management and other related policies, as well as energy development plans related to the storage market environment or with potential storage opportunities.
  • The Energy Storage Manufacturers Database collects global manufacturer information from all segments of the industry chain, including providers of key technologies--such as energy storage units, management systems, inverters, and systems integrators--as well as constructors, project developers, operations managers, battery recyclers, and other members of the energy storage applications chain. 
  • The Market Data Analysis service is based on tracking of global energy storage capacity, providing continuous updates on the scale of markets in China and around the world, categorized by technology, application, country, and city/region, and providing a detailed statistical breakdown and analysis.

Using the data collected from the four services above, the CNESA research department also publishes the quarterly Global Energy Storage Market Tracking Report, providing a comprehensive analysis of the most recent market developments in China and around the world.


Energy Storage Industry Tracking: ES Research’s Energy Storage Industry Tracking follows energy storage industry developments in four categories: project, manufacturer, policy, and research.  The project category helps customers understand the most up-to-date distribution of projects and bidding plans.  The manufacturer category includes information on the most recent product releases, investments, strategic partnerships, production capacity, and other manufacturer activities.  The policy category analyzes domestic and international industry policies and electricity market rules.  The research category consists of predictions from notable research agencies regarding local markets, applications, capital, market developments, and more.


Special Reports on the Energy Storage Industry: CNESA has published its annual Energy Storage Industry White Paper since 2011.  The white paper provides a comprehensive yearly market analysis of the energy storage market characteristics and developments in China and key countries around the world.

Visit to learn more about ES Research products and services.

Chinese Academy of Sciences Visited by U.S. Department of Energy Director of Energy Storage Dr. Imre Gyuk


On January 23, 2018, the Chinese Academy of Sciences hosted a meeting on energy storage with distinguished guests Dr. Imre Gyuk, director of energy storage research at the United States Department of Energy, and Dr. Gary Yang, CEO of UniEnergy Technologies.  Dr. Gyuk and Dr. Yang were met by China Energy Storage Alliance Chairman and the Chinese Academy of Sciences Institute of Engineering Thermophysics Deputy Director Chen Haisheng, China Energy Storage Alliance Deputy Chairman and Beijing Puneng General Manager Huang Mianyan, and CNESA Standing Council Representative and general manager of State Grid Electric Vehicle Service Company Wang Mingcai.

The meeting began with a presentation from Dr. Gyuk.  Dr. Gyuk introduced energy storage technologies, the economics of energy storage, and provided case studies of various energy storage projects across the United States.  Dr. Gyuk’s presentation highlighted the success of peakshaving and load shifting efforts in in California.  He also highlighted the use of energy storage for grid resiliency in areas such as Puerto Rico and Florida, where recent hurricanes have caused severe power shortages.  Dr. Gyuk noted the growth of energy storage projects, predicting a total of 2,045 MW total storage capacity in the United States by 2021.  After the presentation, Dr. Gyuk took questions from meeting members.


Following Dr. Gyuk’s presentation, CNESA chairman and Chinese Academy of Sciences Institute of Engineering Thermophysics Deputy Director Chen Haisheng presented on energy storage market status and development opportunities in China.  The presentation highlighted the decrease in energy storage technology costs, development of policies in support of energy storage, and highlighted project case studies across China.  Deputy Director Chen‘s presentation was followed by a brief discussion before the breaking of the meeting.

The meeting provided an opportunity for information exchange between the United States and China, with attendants learning more about recent energy storage developments and projects of each other’s countries.  The meeting also helped lay the groundwork for future international exchange, such as Sino-U.S. cooperative standardization efforts, project tracking, and more. 


Take Part in the 2nd Energy Storage Innovation Competition


The International Energy Storage Innovation Competition, hosted by the China Energy Storage Alliance, is now open for registration.  The competition, now in its second year, provides a platform for evaluating leading energy storage technologies and applications, highlights examples of innovative models for members of the industry, and honors those who have made outstanding contributions to the field.  The competition is open to companies and organizations from around the world who are involved in energy storage solutions and technologies.


1.      Competition timeline: Dec 25, 2017 to March 31, 2018.

Register between Dec 25, 2017 and Feb 28, 2018 to be considered.

2.      Organizing bodies:

Guiding Organizations: China Association for Science and Technology, National Energy Administration

Host: China Energy Research Society

Organizer: China Energy Storage Alliance

3.      Competition Structure: The competition is open to applicants worldwide and is divided into three awards categories, “Technology Innovation,” “Applications Innovation,” and
Person of the Year”

4.      Registration Method: click the links below to download the official registration forms.  Email completed forms and required materials (as requested on registration forms) to  You can learn more about the Innovation Competition and ESIE 2018 at the official ESIE website here:

Registration Forms:

Applications Nomination Form

Technology Nominations Form