Author

Marie Beyer

Articles written by Marie Beyer

Finance

Negative pricing reshapes solar finance as investors turn to storage for flexibility in Europe Growing price volatility and the rise of negative pricing across power markets are pushing lenders and developers to rethink risk and revenue structures, focusing on asset flexibility and sustainable business models for storage, including co-location.

Oct 14, 2025

Products

France’s Sunology introduces modular residential battery The system plugs into either a standard power outlet or the main electrical panel and automatically captures surplus solar energy – whether generated by rooftop panels or a portable plug‑and‑play kit. Up to four modules, each with a capacity of 2,200 Wh and 500 W of output, can be combined, and the system comes with a 7,500-cycle warranty for long-term reliability.

Sep 12, 2025

Grid-scale

France’s largest battery storage system powers up The 100 MW/200 MWh battery energy storage system (BESS) is connected to the grid with a charge and discharge voltage of 63 kV. It is expected to be fully operational by the end of 2025.

Aug 22, 2025

Grid-scale

France’s EDF builds 50 MW Polish battery The state-owned utility has begun construction of a 50 MW battery energy storage system (BESS) which will be connected to the Polish grid.

Jun 16, 2025

Sodium-ion batteries

Consultation over 5 GWh French sodium-ion battery factory Startup Tiamat wants an initial 700 MWh-per-year pilot line operational but a 2025 commissioning date will likely be pushed back into next year.

Apr 25, 2025

Offgrid

French railway company tests rail-mounted solar-plus-storage plant for works sites A subsidiary of French national railway Société nationale des chemins de fer français (SNCF) is testing a containerized solar-plus-storage system that can be mounted, and moved, on rails.

Feb 03, 2025

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