Slashed French net metering rates boost residential battery storage
The 2025 edition of France''s BePositive trade show coincided with the publication of new rates to be paid for excess solar power injected into the grid from small systems.
Solar is mandatory for living roofs of commercial and industrial buildings and covered car parks occupying 500 m2 or more of ground surface. Simplified permitting procedures have been introduced for smaller PV projects, yet, with regard to energy storage, French law and regulations are still inadequate.
France has opened a final public consultation for the third edition of its Multi-Year Energy Program (PPE) in a revised version that envisages cutting the national solar deployment target for 2035 to 90 GW. Rooftop solar installation in France. Image source: Energies de Loire. PPE3 will be in force for the period 2025-2035.
Despite the ongoing policy uncertainty, we remain optimistic that the French residential solar PV market will stay on a stable path through to 2030. In our outlook, we project a modest ~5% CAGR for residential solar, driven in part by rising retail electricity prices and the increasing appeal of energy independence.
That €0.04/kWh price for excess power from small solar arrays compares with an average electricity price in France of €0.2146/kWh. “We must continue to communicate with the general public so that they don't abandon the idea of investing in solar energy,” said the Hello Watt renewable electricity supplier.
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