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Former nuclear site turned into 800 MWh giant battery to power 100,000 homes

Aman Tripathi July 31, 2025 3 min read
Interesting Engineering
Former nuclear site turned into 800 MWh giant battery to power 100,000 homes
AI Article Summary

EnBW plans to convert a former nuclear power site in Philippsburg into one of Germany's largest battery storage systems. The facility will have a capacity of 400 MW and 800 MWh, enough to power approximately 100,000 homes, and will help stabilize the grid by storing surplus renewable energy. The project is strategically located near a large substation connected to the Ultranet power line. Despite clear plans, the project still awaits final investment decisions and a building permit, aiming for operation by mid-2027.