If you have a holiday home in France and your EDF meter is inside the property, the technician from EDF will leave you a card to fill in and send back if you are able to be there when he comes.
You can also give EDF the reading over the phone or create an account online.
EDF came and read meters twice a year.
This photo is showing an old meter. If you have a recent one, press 'defilement' to get the reading.