In general, public lighting accounts for almost half of the municipal electricity bill. The renovation of the entire public lighting park with new technologies (LED lights, dimming devices, astronomical clocks) will allow the municipality to significantly reduce its energy consumption and thus its greenhouse gas emissions. Moreover, as far as the city of François is concerned, and thanks to the choice of these new technologies, by 2022, it will be able to benefit from 72 % energy savings compared to the reference consumption.