en.Wedoany.com Reported - At 10:30 PM on July 15, inside the main control room of the Lankao Intelligent Manufacturing Base of Zhonghai Energy Storage Technology (Beijing) Co., Ltd. (hereinafter referred to as Zhonghai Energy Storage), China's first iron-chromium flow battery off-grid computing-power synergy demonstration project completed full system commissioning and officially entered the stable load-carrying operation phase. Jointly developed by Zhonghai Energy Storage and Shishi Technology (Pinghu) Co., Ltd., the successful implementation of this project marks a key commercial breakthrough for iron-chromium flow batteries in the zero-carbon digital computing track, paving the way for deep integration of long-duration energy storage with computing power and off-grid self-sustaining operation.
At the 2026 National "Two Sessions," "computing-power synergy" was included in the Government Work Report for the first time, proposing the implementation of new infrastructure projects such as ultra-large-scale intelligent computing clusters and computing-power synergy. Following this deployment, Zhonghai Energy Storage and Shishi Technology launched a benchmark demonstration project in Lankao, Henan Province.
The total project scale is designed to provide off-grid green electricity supply for a 400kW computing unit. Phase I is equipped with a 1MW photovoltaic power generation facility and a 2.5MW/15MWh iron-chromium flow battery energy storage system (rated at an internationally leading level by the Chinese Chemical Society), along with a computing-power synergy management platform. Focusing on five key dimensions—precise forecasting, active support, rapid response, intelligent dispatch, and energy consumption control—the project successfully provides 7×24 uninterrupted green electricity to a 150kW independent containerized computing unit. This project fully validates the feasibility and reliability of long-duration energy storage in independently supporting continuous, stable, and full-load operation of computing loads in a completely off-grid scenario.
The project establishes a fully closed-loop off-grid computing power supply system of "photovoltaic power generation + iron-chromium flow long-duration energy storage + computing load." The park's distributed photovoltaic system provides clean energy, while Zhonghai Energy Storage's self-developed iron-chromium flow batteries handle long-duration energy buffering and voltage stabilization. Coupled with an intelligent management platform, the system achieves millisecond-level coordinated dispatch of photovoltaic output, energy storage charging/discharging, and computing loads. Operating entirely independently of the municipal external grid, 100% of the computing power's electricity comes from clean energy, effectively addressing pain points such as the disconnect between computing power and electricity and the difficulty of green energy consumption.
Currently, with the rapid expansion of the AI industry, edge computing scenarios in mountainous areas, islands, and western regions commonly face issues such as lagging grid infrastructure and fluctuating external power supply. Traditional solutions like municipal electricity and diesel generators struggle to meet the stringent requirements of continuous, high-reliability, and low-carbon operation of computing centers. Zhonghai Energy Storage has been deeply involved in iron-chromium flow battery technology for over a decade, achieving localization of core materials and completing technological breakthroughs in key areas such as stack integration, multi-system coupling, and full-domain intelligent management. Shishi Technology possesses national-level computing center engineering experience and has deep expertise in heterogeneous computing dispatch and refined operations. This demonstration project fully validates the end-to-end adaptability of iron-chromium flow long-duration energy storage in off-grid computing scenarios, providing a fully autonomous, zero-carbon integrated energy supply and computing network solution for areas with weak grid infrastructure.
Leveraging the advantages of iron-chromium flow batteries—strong safety, low cost, large scale, and long lifespan—Zhonghai Energy Storage will continue to optimize the computing-power synergy technology system, develop ultra-long-duration energy storage scenarios exceeding 168 hours, and create a replicable source-grid-load-storage clean energy supply system, supporting computing power new infrastructure and green energy supply in off-grid and grid-weak areas across China.
