France's off-peak electricity hours will change with the seasons from 1 December

If you pay for electricity in France, your cheaper hours are about to move again. From 1 December, Enedis, the company that runs France's electricity distribution network, starts the second phase of its off-peak hours reform.

The change affects 9.3 million customers, both households and businesses. Their heures creuses (the cheaper off-peak hours) will no longer be the same all year. They will vary between summer and winter.

The idea is simple. The aim is to shift consumption to the times when electricity is more plentiful and cheaper to produce.

What came before

The reform began a year ago, in November 2025. In that first phase, Enedis started moving off-peak hours towards the daytime, to match abundant solar power.

This second phase adapts those time slots to the seasons. If you run a water heater, a washing machine or a dishwasher on a timer, it is worth checking your new hours once they apply to your contract.