Linky off-peak hours change from 1 December: check yours

What exactly changes in the Linky off-peak hours?

The split stays the same: 16 peak hours and 8 off-peak hours. What moves is where they sit. At least 5 consecutive off-peak hours stay at night, and up to 3 can land during the day. The slots also vary by season.

• Winter (1 November to 31 March): daytime between 11 a.m. and 5 p.m., night between 9 p.m. and 7 a.m.
• Summer (1 April to 31 October): daytime between 10 a.m. and 6 p.m., night between 11 p.m. and 7 a.m.

Enedis sets the exact hours based on the local grid, so neither you nor your supplier can pick them. Under EDF's regulated Tarif Bleu, an off-peak kilowatt-hour costs €0.1589 against €0.2142 at peak, about 26% less.

How do I know if my off-peak hours are changing?

Look at your current slots. If any off-peak hours fall between 7 a.m. and 11 a.m. or between 5 p.m. and 11 p.m., they will be moved. Your supplier must tell you your new hours at least one month ahead. You do nothing: Enedis updates the meter remotely, with no technician visit. Anyone whose hours change this winter may see another change on 1 April 2027, when summer slots start.

A water heater wired to the meter's peak/off-peak contactor follows the new signal by itself. Anything on a fixed timer needs resetting: washing machine, dishwasher, programmable plug, timed heating and the charger or cable for an electric car. Enedis advises waiting for your new slots before touching any settings.

The reform, requested by the energy regulator CRE, began on 1 November 2025. The first phase, finished in May 2026, covered about 1.7 million customers and has already moved up to 1 GW of consumption to the afternoon, peaking at 3 p.m. Enedis had aimed for about 5 GW in the sunniest months. An Octopus Energy tool can also show your future off-peak hours.