Negative-price exposure, curtailment, grid fees, support schemes — the framework behind France's battery and PV economics. The same rules that drive our PV-Watcher and BESS-Optimizer.
France is moving from subsidy toward market-and-flexibility signals — frequent negative prices, rising curtailment and TURPE 7 reform make merchant BESS (arbitrage + balancing) increasingly attractive.
For PV under the complément de rémunération, the arrêté of 8 September 2025 sets a trigger of −0.10 €/MWh: during sustained negative 'arrêt' periods no premium is paid. An annual 'franchise' applies — below 15 negative-price hours producers are not compensated; beyond that, eligible plants can receive a negative-price premium of 50% of full-power production at their reference tariff. Mechanics are evolving — verify against the live arrêté.
RTE curtailed roughly 3 TWh of renewables in 2025. A curtailed generator is compensated at the price of its own submitted downward (déclassement) offer (pay-as-bid); RTE industrialized this 'compensation for curtailment' process from 20 Nov 2025. From 2026, all generation above 10 MW (incl. wind/solar) must submit its full technical flexibility to RTE.
Standalone storage is in principle subject to TURPE network tariffs, and 'double charging' (charging treated as consumption, then charged again) has been a recognized issue. TURPE 7 introduces an optional injection-withdrawal tariff rewarding counter-cyclical operation (discharge at peak, charge at midday). Sources differ on the exact go-live (2025 vs 2026) and on whether it fully removes or only mitigates double charging — verify with CRE.
Day-ahead and intraday on EPEX SPOT (15-minute since June 2025); FCR and aFRR via RTE (which joined the pan-European PICASSO aFRR platform in April 2025), with mFRR broadening. The decentralized capacity mechanism runs until ~March 2026; an EC-approved centralized mechanism with RTE as sole buyer starts winter 2026-27.
Sources: CRE — note prix négatifs (Nov 2024) · Bird & Bird — arrêté 8 Sept 2025 (−0,10 €/MWh, franchise 15h) · RTE Services — compensation for curtailment (Nov 2025) · pv magazine — TURPE 7 injection-withdrawal tariff (Oct 2025) · European Commission — French capacity mechanism reform (2025)
Last reviewed 2026-06-03. Regulatory summary, no legal advice — verify against the primary source before investment decisions.
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