Strategies to save energy in the service sector in France winter 2022

In winter 2022, targeting the heating and lighting of service buildings are estimated to be the most effective strategies to save energy in the French tertiary sector. For instance, 1.5 gigawatts could be saved in the morning by setting a specific heating plan for service buildings. Specific heating plans would combine different energy savings strategies: reducing the heating setpoint, shifting the heating of buildings before eight o'clock, and turning-off the heating one hour before the buildings empty.
The 2022 energy crisis, worsened in France by the partial unavailability of its nuclear fleet, might cause a mismatch between the energy supply and demand when temperature drop during winter. For this reason, RTE conceived the Ecowatt green, orange, and red signals. On red Ecowatt signal days, the French population is asked to save energy to avoid electricity cuts.