Source: Science and Technology Daily
At 19:18 on November 26, the battery cabin of the Diannong No.1 Energy Storage Station - part of the 200 MW / 400 MWh shared energy storage project by Ningxia Jiyang Green Storage - was successfully energized for the first time, marking the successful grid connection and commissioning of China's largest grid-side lead-carbon energy storage power station.
The Jiyang Green Storage 200 MW / 400 MWh shared energy storage project was invested and constructed by Ningxia Jiyang Green Storage Integrated Energy Services Co., Ltd. Covering an area of 55.4 mu (≈ 3.7 hectares) with a total investment of 620 million yuan, the project sets new records for the largest scale and highest power among grid-side lead-carbon energy storage stations. It is located in the core energy corridor of Xixia District, Yinchuan, and is equipped with 80 customized lead-carbon energy storage integrated cabins.
The system boasts a cycle life of over 6,000 cycles - 3 times that of traditional lead-acid batteries and 1.5 times that of lithium batteries - with a full life-cycle cost 40% lower than lithium batteries, making it the most cost-effective large-scale energy storage solution in China.
The State Grid Yinchuan Electric Power Company comprehensively tracked the project's construction progress, coordinated every step, and organized a professional technical team of dozens of staff from power dispatch, operation and maintenance, marketing, and information communications to provide grid connection services. The power dispatch control center assigned dedicated personnel for over 300 days of full-process monitoring. Under the overall deployment of State Grid Ningxia Electric Power Co., Ltd., both State Grid Yinchuan Electric Power Company and Ningxia Jiyang Green Storage actively coordinated to ensure the smooth grid connection of the Diannong No.1 Energy Storage Station.
“A successful grid connection of this project helps accelerate the integrated development of Yinchuan's energy storage industry and supporting clean energy sectors, enhances the grid's flexible regulation capability, increases renewable energy absorption, and eases peak electricity supply pressure. It also serves as an important demonstration for the integration of ‘generation-grid-load-storage’ and multi-energy complementarity,” said a relevant official from State Grid Yinchuan Electric Power Company.
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