On June 11, Qinghai Energy Bureau issued the Notice on Matters Related to the Development and Construction of Market-oriented Grid Connection Projects in 2021, which made it clear that the projects suitable for the market-oriented grid connection construction in Qinghai were mainly the integration of power, grid, load and storage and multi-energy complementary projects. According to the document, on this basis, considering factors such as the maturity of construction conditions, the possibility of load landing, the proportion of energy storage allocation and the comprehensive capability of enterprises, 20 key projects for the first market-oriented grid connection in 2021 were selected and subsequently implemented by the municipal Development and Reform Commission (Energy Bureau) to carry out dynamic management of key projects. The other projects which have high feasibility and good implementation can be timely updated into the list to rolling revise.
According to the document, for the projects that have implemented the conditions of market-oriented grid connection and have signed an agreement with the Qinghai Power Corporation, they should be put on record or approved according to the government approved investment project catalogue in accordance with the principle of "the approval following the report", and the validity period of photovoltaic and wind power projects should be defined. For projects without substantial construction of energy storage and adjustable supporting works within one year, the filing and approval documents shall be annulled, and losses shall be borne by the enterprises themselves. According to the list, Qinghai will focuses on promoting 20 first market-oriented grid connection projects in 2021, with a total power supply scale of 42.13GW and energy storage scale of about 5.2GW.
In terms of energy storage configuration, electrochemical energy storage is the mainstream configuration mode. Some projects also involve photothermal, electric mine card electrical changing station, compressed air energy storage and other forms. Among them, the proportion of energy storage in most projects is 10% and 2 hours. However, there are also high-proportion projects, such as the energy storage ratio of the project of Jingneng reached about 63%, and the energy storage ratio of the project of National Power Investment Corporation and China National Energy Construction Corporation reached about 30%.
In addition, of the above 20 projects, 12 projects are marked with specific load projects, most of which are in the form of clean heating, equipment manufacturing, data center, etc. In addition, Trina Solar Energy is the only private enterprise to enter the project list. It has jointly developed a 1GW complementary integration project of wind-polar storage + wind prevention and sand fixation with the National Energy Group.