This is the most significant expense item (up to 80%)! here's how to master it.

Hot water

Isolate, adjust, program: the watchwords to avoid overconsumption.


It represents 10/15% of your bills: adopt the right consumption habits.

Domestic appliances

What criteria to watch for when buying? How to use your devices? What you need to know to save.


10% overconsumption in electronics: how to change this ?

The kitchen

Follow these tips to further optimize your energy consumption.