Privacy and cookies

What the site records

The simulations you enter (location, equipment, consumption) are kept on the server, in a space of your own, for at most 3 days after your last change, then erased. No personal details are asked for. You can export your simulations as JSON at any time, and delete them yourself.

Strictly necessary cookies

An anonymous session cookie (simulateur_session) identifies your simulation space — without it the site cannot work. It is used for no tracking whatsoever. The language you choose is kept in a separate cookie (simulateur_langue), and your answer to the consent wall in a third one (simulateur_consentement), for six months.

Audience measurement

The site uses Google Analytics, loaded through Google Tag Manager, to measure its traffic. No tag is written into the page until you have accepted: this is not a dormant load, it is an absence. Use of the site is conditional on that acceptance: until the question is answered, the site stays fully visible but nothing responds to you — no navigation, no action —, this page excepted, since it has to be readable in order to decide.

Google's consent mode is used as it prescribes: everything is denied by default, and only analytics storage is then granted. Advertising signals — ad storage, user data, personalisation — stay denied permanently: this site carries no advertising and asks for no profiling.

You can withdraw your consent by clearing this site's cookies in your browser: the question will be asked again on your next visit, nothing will load and the site will stay inert until you answer it.

Your rights

Under the GDPR you have a right of access, rectification and erasure of the data concerning you. Since the simulations are anonymous and erased within 3 days, the simplest course is to delete them straight from the home page.