source: Audi AG 1.9 MWh storage unit consisting of used lithium-ion batteries is being connected to the grid Germany’s largest multi-use storage unit compensates for fluctuations in the grid and optimizes energy supply Real-life laboratory indicates potential for energy transition Audi is electrifying the capital: In the context of the Formula E guest performance in Berlin, the brand with the four rings has opened up Germany’s largest multi-use storage unit on the ...