Fast Response · High Reliability ·
Maintenance-Free

The all-supercapacitor energy storage system deployed at Huaneng Yimin Power Plant is coupled with a 660MW thermal power generation unit. The project was delivered in 2024 and was officially commissioned in Q1 2025.

Solution:

The solution meets both primary frequency regulation and secondary frequency regulation requirements. It adopts titanium-based supercapacitor energy storage and integrates: 4 × 2MW × 10min capacitor cabins; 2 × 4MW × 10min capacitor cabins; 4 × 4.5MW step-up cabins; 2 energy storage medium-voltage cabins; 1 central control cabin.

Benefits:

Within just four months of operation, the project reduced primary frequency regulation assessment penalties by about RMB 5 million and generated about RMB 5 million in profit, with total positive returns exceeding RMB 10 million. The compliance rate for response delay time increased to over 92%, while the load adjustment range, adjustment deviation, and energy contribution value all exceeded standard requirements.

China Datang Shandong Lubei Thermal Power and Energy Storage Combined Frequency Regulation project is coupled with two 330MW thermal power generation units and was commissioned on April 24, 2024.

The Zhongdian Jingu Grid Side stand-alone energy storage station project adopts a hybrid system of supercapacitors + lithium batteries and was delivered in 2024.

The CHN Energy Ningxia Integrated Solar-Plus-Storage Power Station is the largest grid-forming energy storage station commissioned in China. It adopts coordinated operation of supercapacitors + lithium batteries + sodium-ion batteries and was delivered in December 2024.