Overview
- This week the Voltfang 10 MW/21 MWh project at the former Philips site in Aachen began on-site work and Vattenfall announced a final investment decision for a 254 MW battery with up to 1,000 MWh at the old Brunsbüttel nuclear site.
- A large proposal for a 900 MW battery plus a 100 MW AI data center at the Niederaichbach/Isar II site is being promoted by Bavarian officials and remains in planning, showing interest in reusing decommissioned power infrastructure.
- Industry groups and grid operators say batteries will shift excess wind and solar generation and help keep frequency, voltage and line loads within limits, but they warn long grid-connection procedures and regulatory uncertainty are blocking delivery.
- Household storage sales are rising as modular PV-plus-storage kits such as the Anker SOLIX 3 are offered in heavy discounts and can be expanded later, making time-shifted self-consumption more affordable for renters and homeowners.
- Germany now has roughly 29.6 GWh of installed battery capacity, less than pumped hydro, so the new utility-scale builds matter for system flexibility and could speed renewables growth if permitting and grid upgrades keep pace.