In France, EDF offers two main electricity tariffs: a flat base rate and a peak/off-peak (HP/HC) rate. The HP/HC tariff gives you cheaper electricity for 8 hours per day — but is it actually saving you money? This calculator compares both options based on your real consumption.
How Does HP/HC Pricing Work?
The HP/HC tariff charges a lower rate during off-peak hours (heures creuses, typically overnight) and a higher rate during peak hours (heures pleines). The subscription is also slightly more expensive. For HP/HC to be worth it, you need enough consumption during off-peak hours to offset the higher peak rate and subscription cost.
When Is the Base Rate Better?
If less than 35-40% of your consumption happens during off-peak hours, the base rate is usually cheaper. This is common for single-person households, small apartments without electric water heaters, or people who can't shift consumption to nighttime. Check our Energy Vampire Detector to find other ways to reduce your electricity bill.