Germany’s energy and mobility sectors may get a new backbone for large‑scale storage: ADS‑TEC Energy announced on 28 October 2026 that permitting authorities have confirmed all application documents for a planned battery energy storage power plant at the Pulverdingen substation (Markgröningen, Baden‑Württemberg) are complete and that a building permit is expected shortly — a crucial milestone before construction and grid connection. This matters for drivers, dealers and factories across Germany and Austria because multi‑hour storage helps stabilise grids, free up renewable generation and reduce electricity price spikes that affect charging costs and industrial power budgets.
Project details and timeline
ADS‑TEC’s release describes the facility as “approximately 1 gigawatt (GW) of power output” with “about 4 gigawatt hours (GWh)” of storage capacity — roughly a four‑hour duration at full output — making it one of the largest battery storage sites planned in Europe. The company says grid connection is targeted for 2029; the building permit is the next formal step.
The project is sited at the Pulverdingen substation in the municipality of Markgröningen, north of Stuttgart, and ADS‑TEC says it is being developed with European industrial partners and will use the company’s proprietary battery management and control technology. ADS‑TEC also told investors it intends to sell a majority stake in the project company while remaining as a long‑term technology and services partner.
In its investor disclosure the company links third‑party market benchmarks (Modo Energy) that place recent German large‑scale storage revenue ranges at roughly €191,000–€230,000 per MW per year for two‑hour reference plants (monthly June–September 2026), figures the firm cites to explain the commercial case while noting they are not forecasts. The ADS‑TEC release stresses the project’s role in shifting midday solar surpluses into high‑demand hours and in stabilising frequency and grid restoration.
