Germany: System integrator Eco Stor planning 300MW/600MWh BESS

July 17, 2023
LinkedIn
Twitter
Reddit
Facebook
Email

System integrator Eco Stor is planning to build a 300MW/600MWh battery energy storage system (BESS) in Saxony-Anhalt, Germany, one of the largest projects in Europe.

The project will be completed in 2025, managing director Georg Gallmetzer told German press last week, and will require an investment of around €250 million (US$280 million). Construction is set to begin next year at the site in Förderstedt.

The location was chosen thanks to the presence of an existing substation, which would allow the large grid connection required. It is within the service territory of transmission system operator (TSO) 50 Hertz, one of Germany’s four big TSOs along with TransnetBW, TenneT and Amprion.

The project would comprise six of the company’ ECO STOR ES-50C block configurations, each with a 50MW/100MWh capacity. Each block has a 110kV substation, 16 containers for the inverters and transformers, and 32 containers for the lithium-ion batteries.

This article requires Premium SubscriptionBasic (FREE) Subscription

Enjoy 12 months of exclusive analysis

Not ready to commit yet?
  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Annual digital subscription to the PV Tech Power journal
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

A preliminary building permit application is in progress and a decision is expected in the coming weeks, Gallmetzer added. See a render of the project below.

Eco Stor operates out of Norway and Germany and counts Agder Energi Venture and Klaveness Marine Holdings as its main shareholders.

The company has recently deployed and commissioned projects in Germany for investment firm Obton as well as utility Verbund, with both projects developed at the early-stage by Kyon Energy.

This latest project will be larger than the current largest operational system, a 72MW one in Werne deployed and owned by energy firm RWE. RWE is building two which will both surpass it, totalling 80MW/84MWh and 140MW/151MWh, both in North Rhine-Westphalia, for 2024 commissioning.

The largest operational project in Europe by energy capacity is a 196MWh BESS commissioned by investor Harmony Energy in the UK, in late 2022.

Germany now has over 1GW of grid-scale BESS online according to Eco Stor’s figures. While its residential and commercial & industrial (C&I) segments have been very strong, grid-scale projects have only just started to pick up in the last year or two.

Read Next

October 16, 2025
The first large-scale battery energy storage system (BESS) with grid-forming capabilities in Germany was inaugurated a few days ago.
October 16, 2025
Octopus Australia has acquired the Coleambally battery energy storage system (BESS), a 100MW/400MWh standalone project in development located in southern New South Wales.
October 15, 2025
Takeaways from the first day of Energy Storage Summit Latin America 2025, including the Chilean and Argentinian markets.
Premium
October 14, 2025
We catch up with the CFO and co-founder of German BESS own-operate platform Terra One, after its €150 million (US$173 million) mezzanine financing to scale up in Europe’s hottest energy storage market.
October 13, 2025
Australia’s most powerful BESS, the 850MW Waratah Super Battery, achieved its first full discharge to the NEM last week.

Most Popular

Email Newsletter