Off-peak hours: the biggest reform since the 1970s affects 14.5 million customers
Rolled out from 1 November 2025, the reform shifts time bands towards the afternoon in summer, when solar generation is highest.
On 15 October 2025, Enedis announced the roll-out, from 1 November 2025, of the reform of peak and off-peak hours, in accordance with the TURPE 7 provisions defined by the French Energy Regulatory Commission in March 2025.
This change aims to align consumption time bands with the new realities of the energy mix, in particular when solar panels generate the most electricity, and with new consumer habits, between programmable appliances and home working.
The CRE decided to revise off-peak hours in order to better align generation and consumption periods, making it possible to benefit from abundant, low-cost electricity, notably in the afternoon in summer.
This is the biggest reform since off-peak hours were introduced in the 1970s and 1980s, when the aim was to optimise the management of uses such as hot water tanks.
The reform affects 14.5 million customers on a peak/off-peak offer. Of these, 3.5 million already have time bands compatible with the new rules; the remaining eleven million will see their hours change.
The principle illustrates a broader shift: the tariff signal no longer follows the demand curve alone, but is now aligned with the availability of decarbonised generation.