Self-consumption 7 min read
How Many Solar Panels Does Your Business Need?
The number of solar panels depends on an optimal peak power calculated by a sizing study, not on your roof surface. The decisive role of self-consumption and storage.
Battwoo Blog
Energy storage, from a professional lens.
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Self-consumption 7 min read
Refrigerated warehouse solar: matching output to cold load
A cold store runs around the clock; a rooftop array runs six hours. How to close the gap: self-consumption limits, pre-cooling, and second-life battery storage.
Strategy 5 min read
Sizing study: an essential first step before comparing any price per kWh
Before comparing prices per kWh, a sizing study determines whether battery storage is profitable for your site. Method and key indicators explained.
Market & energy 6 min read
Battery Storage Price: What the Quote Actually Covers
A commercial BESS runs roughly €300–500 per kWh installed. That figure means nothing without the exact scope of the quote and proper site sizing.
Technical 7 min read
How to Size a Battery Storage System for Your Business
Load curve, PV capacity, energy prices, network tariffs: the complete method to size a battery storage system that is actually profitable.
Regulation 6 min read
Photovoltaic Order S21: what changes by installed power bracket
The S21 Order of June 2026 reshapes solar buyback according to three power regimes. A breakdown by segment and the implications for self-consumption and storage.
Market & energy 12 min read
Solar Resale in France: Why the Economic Model is Changing in 2026
End of total resale for ≤9 kWp, AOS for 100-500 kWp, 359 hours of negative prices in 2024: decoding the mutation of the solar economic model and the role of battery storage.
Strategy 2 min read
Battwoo, backed by the European Union to accelerate second-life storage
We're proud to announce a major milestone for Battwoo: nearly €800,000 in support secured through the NextGenerationEU programme, funded by the European Union. This funding will allow us to accelerate the development of our stationary storage technology, built from electric-vehicle batteries diagnosed for a second life.
Technical 7 min read
Solar panel orientation and tilt: maximise PV output
Orientation, tilt, shading: three levers that change photovoltaic output by 30 % or more with the same hardware. Complete method for a B2B project.
Regulation 6 min read
Photovoltaic Storage: CRE Reform Explained
France lost 1.6 TWh of solar power in 2025. The CRE reform accelerates PV + storage to boost flexibility, reduce losses, and improve profitability.
Regulation 2 min read
Independent Technical Review conducted by VDE Renewables
We are pleased to announce an important milestone: an independent review conducted by VDE Renewables has been successfully completed for our Battwoo Multus energy storage systems, based on a thorough assessment of our technical documentation and operational processes.
Self-consumption 8 min read
Load curve analysis: the key to right-sizing a BESS
Before investing in stationary storage, downloading and reading your site's load curve is essential to size a BESS correctly. Method for industrial, tertiary and logistics sites.
Technical 9 min read
Photovoltaic solar panels: complete 2026 B2B guide
Technologies, 2026 prices, efficiency, durability: everything a B2B operator needs to know about solar panels before equipping an industrial, tertiary or logistics site.
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