French cleantech backed by the European Union and Bpifrance
Battwoo designs and deploys stationary Battery Energy Storage Systems (BESS) built from second-life electric-vehicle batteries. Maximise your solar self-consumption, shift load to off-peak hours, generate passive income through spot-market arbitrage, and durably reduce your electricity bill.
Battwoo BESS — Modular
Custom capacity — up to 3 MWh
Trusted by
Why Battwoo
Turnkey service, custom sizing, dedicated second-life battery expertise — and a choice that is both affordable and sustainable.
A 4-step process — from the technical and economic study to pilot operations and maintenance. A single project manager runs the whole programme: clear timelines, precise deliverables, contractual warranties.
Custom sizing tailored to your goals and precise modularity. Plug-and-play integration in retrofit or new-build projects — compatible with any existing system.
A pure-play specialist in stationary energy storage for professionals. In-house R&D, protocols validated by an independent lab, European certifications.
A second life for electric-vehicle batteries: carbon footprint divided by four versus new — without compromise on quality or warranty.
Our method
From the initial audit to operation, a single project manager runs the programme. Clear timelines, precise deliverables, contractual warranties.
Detailed audit of your consumption profile and solar installation. Precise sizing, multi-year savings simulation, full business case.
Sourcing and diagnosing batteries from European suppliers, assembly in our Spanish workshop, full integration with switchbox, thermal management and wiring.
Turnkey delivery, full connection to existing systems (grid, PV, inverter), Consuel compliance, and start-up for production operations.
24/7 supervision, precise control, and continuous optimisation of the control software. Annual preventive and reactive maintenance included.
Who it's for
Battwoo serves companies, tertiary buildings, farms, local authorities, and production sites that want long-term control over their energy budget.
Industry
Production lines, presses, assembly chains.
Food & beverage
Raw-material processing and heat treatment, packaging, etc.
Logistics & supply chain
Warehouses, EV charging infrastructure (EVCI), electric material handling.
Cold & process
Cold rooms, fast freezing (IQF), industrial process cooling.
Offices & tertiary buildings
Headquarters, campuses, hotels, retail, office buildings.
Data centres & critical tertiary
Edge data centres, technical centres, R&D facilities.
Farms
Livestock, crops, greenhouses, dryers, irrigation.
Local government & public sector
Public buildings, schools, gymnasiums, community facilities.
Off-grid sites
Lodges, weather stations, hangars.
Other
Industry not listed? Our solution adapts to most commercial solar installations — let's discuss your site.
Trusted by our customers
« Thanks to Blaise and the whole team for the support throughout the project. No doubt this is the first of many projects with you. »
Arthur Luce
President · Solair' Forez
« Brilliant — you nailed it. You should be proud, and you can count on me to recommend you. »
Antoine Drieu
President · Aéroclub Arc
« I discovered Battwoo on a solar forum. The founders, motivated and skilled, showed me a well-designed battery prototype. I'm pleased with both the product and the process. »
Bruce Donot
Technical director · Enviroearth
FAQ
Can't find your answer? Our engineers reply directly to your technical questions.
A second-life battery comes from an electric vehicle. While it no longer meets the demanding requirements of automotive traction (range), it still holds 80 to 90 % of its initial capacity — which is ideal for stationary storage. Reusing an EV battery cuts the embodied carbon footprint by a factor of four versus a brand-new battery, while also generating significant savings on the upfront investment.
On a typical professional site, our customers see a 30 to 60 % reduction in their electricity bill. This comes from maximising solar self-consumption (up to 90 % valorised), peak shaving, time-of-use shifting, spot-market arbitrage, participation in aFRR/mFRR grid services, etc. Typical payback (ROI) is 4 to 7 years, depending on the site profile.
Yes. Our stationary storage solutions are technology-agnostic and integrate via AC coupling on existing or new solar installations. They are also compatible with EV charging infrastructure (EVCI) and back-up generators.
Thanks to our rigorous diagnostic protocol and our proprietary BMS (Battery Management System), we warrant 5,000 cycles — that is 15 to 30 years of operation depending on your usage profile. Our units are CE certified and comply with the strictest safety standards (REGULATION (EU) 2023/1542, VDE).
Typical lead time is 8 to 14 weeks. The turnkey process includes the technical & economic study, custom manufacturing in our workshop, on-site installation, grid connection, and commissioning with Consuel compliance.
Interested?
Custom battery sizing to maximise gains based on your consumption profile. Free and no-obligation.
Reply within 48 business hours — Confidential
