Enel’s subsidiary Enel Green Power Germany, the German renewable energy company ENERTRAG and the Switzerland-based energy storage solutions company Leclanché have inaugurated the 22 MW Cremzow Battery Energy Storage System (BESS), located in Cremzow, in the German state of Brandenburg.
The system is supporting the stability of the German electricity network by providing frequency regulation services to the country’s Primary Control Reserve (PCR) market.
The Cremzow BESS is providing the grid with a real-time primary frequency regulation service contributing to its stability. When the grid’s frequency decreases due to high power demand, the battery is able to deliver its stored energy within 30 seconds, while in response to frequency increases due to low demand, the battery is charged with the surplus energy. Furthermore, the possibility to integrate the BESS with ENERTRAG wind farms, using the wind energy surplus to charge the batteries avoiding curtailments, is currently being studied.
The BESS is owned by a special purpose vehicle (SPV) in which EGP Germany holds a 90% majority stake and ENERTRAG the remaining 10% stake. Leclanché acts as the engineering, procurement and construction contractor for the project, in charge of integrating battery and power conversion systems and energy management software.
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