Households that have never compared their energy contract in years and pay top price out of habit. Rates change; your contract doesn't.
Hello Watt (hellowatt.fr), the French energy advisor. It analyzes your bill, compares the offers on the market and handles the provider switch for you, with no outage and no fees.
Trigger: You upload your energy bill — analyzes your usage, compares offers and handles the switch, and you get a better-suited contract with no outage.
€0 (free service, paid by the providers). Free service (paid by the providers).
Yes. Free service (paid by the providers).
Level: Easy. Setup takes 4 steps; the first: Go to hellowatt.fr and upload your latest bill.
Beware of very low fixed-price offers in the first year that skyrocket afterwards: read how long the rate is guaranteed. Switching never cuts off your electricity — that's the law: don't let anyone intimidate you.
Moving means weeks of paperwork for the contracts
€0 for you (Papernest is paid by the providers).
All my plants end up dying
€0 in the basic version (watering reminders); Premium around $8/month or $36/year for unlimited identification and diagnostics.
Planning the family vacation turns into a headache
Free to plan; premium plan around $49/year for advanced features.
Profile updated on November 1, 2026 — see what's new at the Directory.