China Power Chunhe 200 MW PV Power Project Achieves Full-Capacity Grid Connection

On May 27, 2025, China Power Chunhe 200 MW PV Power Project attained full-capacity grid connection at 10:06 AM in Zhangye, Gansu.

As a cornerstone of Zhangye City's 14th Five-Year Plan for renewable energy, the project is situated in Liuba Town, Minle County, Zhangye City, Gansu Province. It includes a 200 MW solar farm, a 110 kV substation, and 46.7 km long transmission lines (23.03 km at 110 kV; 23.67 km at 330 kV), plus a 30 MW/120 MWh energy storage system. Built to China's 1985 National Elevation Benchmark, the project adhered to "high standards and rigorous requirements" throughout construction.

Upon completion, the project is expected to generate approximately 360 GWh of electricity annually with 1,794 full-load hours, equivalent to saving 110,000 tons of standard coal per year. This will reduce emissions by approximately 310,000 tons of CO₂, 10,000 tons of SO₂, and 973 tons of NOₓ, delivering significant economic, environmental, and ecological benefits.

During the 240-hour trial operation, the project team implemented precision inspections, intelligent monitoring, and 24/7 shift coverage to ensure stable performance of core equipment including PV modules, inverters, transformers, and substations. Meanwhile, the energy storage system underwent a rigorous 72-hour test, completing full charge-discharge cycles that validated battery cluster balance, PCS response time, and energy conversion efficiency, providing reliable support for peak load and frequency regulation.

The seamless grid integration and commissioning sets a valuable precedent for similar future projects. Next steps include coordinating resources to complete defect elimination, documentation, and final acceptance, ensuring timely operation while maximizing economic and social value.