Bavaria’s Green Flexibility breaks ground on 80-MWh grid-neutral battery project

Sep 12, 2025 03:00 PM ET
  • Green Flexibility has started building a 40-MW/80-MWh “grid-neutral” battery in Bavaria to optimize connection capacity and firm daytime solar.

German developer Green Flexibility has begun construction of a 40-MW/80-MWh battery energy storage system in Bavaria as part of a pilot focused on “grid-neutral” operation—using smart controls to maximize the value of limited connection capacity. The system is tailored to soak up excess midday solar and redeploy it into evening peaks, while supporting frequency and voltage needs on increasingly renewable-heavy feeders.

The concept aligns with Germany’s next-phase integration challenge: abundant PV at noon and tightness later in the day. Batteries co-located with solar (or tied to the same node) can reduce curtailment and create revenue through capacity and ancillary markets. In a distribution network where interconnection caps can constrain new projects, grid-neutral strategies—charging during low-load periods and discharging at peaks—unlock more clean capacity without immediate grid reinforcements.

From an engineering standpoint, expect grid-forming inverter capabilities, stringent fire-safety systems, and SCADA tuned for rapid operator signals. Commercially, standardized platforms and long-term service agreements should keep operating costs predictable, a priority for lenders underwriting merchant-exposed revenues.

If the pilot performs as intended, regulators and DSOs could adopt similar templates nationwide, allowing more PV and storage to connect faster while maintaining network stability.