Key to such a high penetration — up from a current 6% — is a strong increase in storage to be able to use all solar power produced (which during midday peak hours will soon exceed Germany's overall demand), says the Berlin University of Applied Sciences report Decentralised Solar Energy Storage for the Energiewende, led by Voker Quaschning.
PV installations combined with energy storage systems could meet 80% of the electricity needs of German homes, Quaschning claims.
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