France’s distribution system operator Enedis has announced a nationwide redesign of peak and off-peak electricity pricing schedules, with the new framework set to take effect on Nov. 1, 2025. The overhaul aims to better align electricity consumption with growing solar PV generation and the country’s broader renewable energy targets. The revision stems from the TURPE 7 grid tariff structure, approved by France’s Energy Regulatory Commission (CRE).

Shifting Consumption to Solar-Heavy Hours

The reform is intended to reshape how households and businesses use electricity as France’s energy landscape transitions toward a higher share of renewables. Enedis says the update reflects evolving consumer patterns—such as increased use of programmable appliances, smart home devices, and the continued rise of remote work, which allows more flexible daytime energy use.

According to Enedis, the revised time-of-use windows could shift up to 5 GW of electricity demand into the middle of the day during the sunniest months. This would help flatten France’s daily load curve, reducing stress on the grid and minimizing dependence on carbon-intensive evening generation, particularly during peak demand.

Millions of Customers Affected

Roughly 14.5 million electricity users in France currently subscribe to the peak/off-peak tariff option. Enedis estimates that 3.5 million of these customers are already on schedules compatible with the new structure. The remaining 11 million will see their off-peak hours adjusted in stages between November 2025 and October 2027.

What Will Change for Consumers?

The reform preserves the basic benefit of providing eight hours of discounted off-peak electricity each day, but the distribution of those hours will change:

• At least five of the off-peak hours will still occur overnight, ensuring continuity for consumers who rely on nighttime charging and heating.
• Up to three hours will be reassigned to daytime periods in the summer, typically between 11:00 a.m. and 5:00 p.m., when solar generation peaks.
• Discounts during historically high-demand windows—7:00 a.m. to 11:00 a.m. and 5:00 p.m. to 11:00 p.m.—will be scaled back to discourage consumption during those more carbon-intensive periods.

Automatic Rollout for Homes and Businesses

The adjustment will take place automatically, requiring no action from residential or commercial users. All consumers who currently have a peak/off-peak contract will be transitioned to the new time slots as the reform progresses.

Enedis plans to integrate commercial and industrial (C&I) customers during the final phase of the rollout, with full nationwide implementation expected by late 2027.

A Key Step Toward a More Flexible, Solar-Responsive Grid

The shift marks a major milestone in France’s efforts to enhance demand-side flexibility, support renewable energy integration, and lower system-wide emissions. By synchronizing off-peak incentives with daylight-driven solar production, the reform is expected to help optimize grid operations and reduce reliance on fossil-fuel backup during the evening peaks.