Battery park with 5 MWh: Pilot project in Germany

Younicos founder Clemens Triebel (left) and WEMAG board member Thomas Pätzold (right) (Photo: Younicos)
Younicos founder Clemens Triebel (left) and WEMAG board member Thomas Pätzold (right) (Photo: Younicos)

Starting in mid-2014, a large storage system with a capacity of 5 MWh and a power of 5 MW will support the generation of electricity from wind and sun in north-eastern Germany. The green electricity provider WEMAG intends to start building the fully automated battery park in Schwerin in June.

The project partner is the Berlin company Younicos; the selected lithium-ion cells with a 20-year performance warranty will be provided by the Korean manufacturer Samsung SDI. The mass storage system will be connected to the grid with a capacity of 5 MW and should stabilize its frequency. WEMAG says that its grid area has a regenerative power input of 800 MW. "Approximately 80 percent of the electricity consumed is generated by renewable sources here. The battery storage system helps to compensate for fluctuations in the volatile supply," explains WEMAG Director Thomas Pätzold. The battery park will be integrated with a 110-kV substation, which is an interface between the regional distribution grid and the high-voltage grid.

Ralf Ossenbrink

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