terralayr buys out BBD to vertically integrate German battery-storage pipeline
terralayr has taken full ownership of Big Battery Deutschland (BBD), consolidating a greenfield battery-storage development arm that has been a close partner for years.
The move brings BBD’s development pipeline — reportedly over 1 GW — and its team fully inside terralayr, strengthening the company's in-house ability to originate, permit and deliver utility-scale batteries across Germany.
For Berlin investors and founders watching the energy infrastructure space, the acquisition is a clear signal that developers are racing to lock down curated project pipelines and technical know-how ahead of rising demand for flexibility capacity.
Germany’s power system is shifting fast: more renewables, rising electrification and stronger industrial loads are increasing stress on the grid and raising the value of well-located battery assets.
terralayr says the takeover accelerates its “development engine” in Germany by internalising a team with expertise in site origination, permitting, grid processes and project structuring. In 2025, BBD sold close to 50 MW of projects to terralayr; that track record, the company notes, gave both parties confidence to complete the full acquisition.
Philipp Man, co-founder and CEO of terralayr, said in a company statement: "This transaction further strengthens our foundations in Germany by fully integrating a development capability that has already been central to our growth. It gives us even greater control over how and where we build battery storage, while preserving the operational continuity and expertise that have made the platform successful."
The deal arrives on the heels of terralayr’s recent financing: a reported €192 million growth-equity raise and €60 million in debt. That balance sheet, combined with an enlarged development capability, positions the company to accelerate permit-ready projects and move quickly into construction as market signals change.
terralayr today operates or has under construction more than 150 MW of battery storage in Germany and says nearly 200 MW are at a ready-to-build stage — a solid execution base for expansion. Bringing BBD in-house should give terralayr tighter visibility on the multi-gigawatt pipeline it is building across Germany and, eventually, Europe.
Hendrik Büchner, CEO of BBD, said in the announcement: "BBD and terralayr have worked closely together for several years as part of a proven joint venture. Fully joining terralayr is the natural next step for our team and gives us the platform and long-term stability to scale the development of large battery projects in Germany, while preserving the entrepreneurial spirit and expertise that have defined BBD from day one."
The acquisition also aligns with terralayr’s commercial stack. The company manages assets via its proprietary software platform, LAYR, which virtualises batteries and routes them to market.
LAYR aggregates capacity for participation in ancillary services, wholesale power markets and terralayr’s Virtual Battery Auctions (VBAs), and allows access by multiple independent optimisers — a model designed to maximise value across revenue streams.
The purchase is a pragmatic consolidation at a time when policy, grid constraints and merchant market signals are making execution speed and site quality the primary differentiators in Europe's battery-storage race.
terralayr employs roughly 50 sector specialists and says the integration of BBD will preserve the team’s operational continuity while centralising decision-making and capital allocation across development activities.