Power firm EnBW is building a 100MWh BESS in Germany for completion this year (a year later than planned) while BESS platform Noveria Energy has signed a construction agreement with TSO TenneT for a 1GWh project for 2028 operations.
These are the latest in a raft of large-scale German battery energy storage system (BESS) projects moving forward in what is Europe’s busiest market for grid-scale activity, as investors look to capitalise on huge energy trading opportunities in the continent’s deepest wholesale energy market.
EnBW to complete delayed project this year
EnBW has announced the start of construction on a 100MW/100MWh BESS project at its Marbach legacy thermal plant, saying it will begin operations at the end of 2026.
It shared the news in a LinkedIn post last week (17 April), sharing the updated timeline for the project which it had initially slated for 2025 commercial operation, when first announced in 2024.
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It said the Marbach site could in future provide a combination of short-term storage with the lithium-ion BESS and long-term capacity with ‘hydrogen-capable gas-fired power plants’.
The company is developing BESS projects in Germany with 1.8GWh of combined capacity, including the 400MW/800MWh project at its Philippsburg Energy Park, set for 2027 commissioning.
It may be worth noting one of the comments on EnBW’s post. Steffen Bögner, managing director of local renewable energy solutions firm Ingenia Projects, asked EnBW why the group’s project arm is able to build hundreds of megawatts of batteries while its grid operator subsidiary Netze BW is rejecting Ingenia’s connection requests or stating wait times of 20+ years, for sub-20MW projects at existing substations. He said it created the suspicion that the sister company was being favoured.
EnBW responded on the post saying it understood this was frustrating but it didn’t have any concrete information to share.
Noveria Energy contracts with TSO for 1GWh project, 2028 operations targeted
Developer Noveria Energy has signed a grid connection and construction agreement with German transmission system operator (TSO) TenneT for a 250MW/1,000MWh project, slated for connection in early 2028.
It will be in Niedersachsen in north-west Germany where large amounts of offshore wind energy from the North Sea connect to the grid, Noveria said. Its operation will establish the ‘technical prerequisites to support grid stability and the integration of renewable energy in the future’, Noveria said.
Although Noveria didn’t call it one, the project sounds similar to so-called ‘grid booster’ projects that are being deployed in select markets including Germany and Lithuania. System integrator Fluence is deploying two 100MW/100MWh projects for TenneT in Germany. The projects are dedicated to helping TSOs manage the grid in light of an increasing renewable energy mix. TenneT also just contracted for a similarly grid management-focused BESS project in the Netherlands, which is its home market.
Noveria’s director of grid and policy Dennis Klink will be speaking at Solar Media’s Energy Storage Germany 2026 event in Stuttgart on 9-11 June, co-located with parent company Informa Markets’ The Battery Show.
Commenting on the TenneT project agreement, he said: “Signing the grid construction agreement with TenneT Germany reflects the strong commitment of all parties to the success of this important project.”
Noveria is the European BESS platform of investor Bluestar Energy Capital. Noveria’s managing director Ben Brook discussed high-level European market trends with us in a Q&A back in January.
