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F.01Expert calculatorHour-by-hour schedules · 14 sections · free

Your consumption, hour by hour.

Enter each appliance and tick the hours it runs, on weekdays and at weekends. Maximum accuracy, for the most precise sizing.

1 / 14

Your home

Floor area, occupants and energy performance.

Level of detail
Quick estimatePresets: result in a few minutes
Detailed estimate (expert)Hour-by-hour schedules, maximum accuracy
Total of all entries— kWh/year
Step 1 of 14 7 %
01
Your home
Floor area, occupants and energy performance.
Adjusts the heating coefficients to your region (French climate zones H1/H2/H3).
02
Heating
Enter your heating appliances and their usage schedules.
Main heating
Heat pump, convector heaters, underfloor heating... Add one appliance per main heat source.
Supplementary heating
Top-up or secondary rooms (heated towel rails, portable heaters...).
03
Space cooling
Air conditioning or fans in summer.
Cooling appliances
Fixed or portable air conditioning, ceiling fans... Add each appliance separately.
04
Ventilation
Mechanical ventilation (VMC, VMR) and air renewal systems.
Ventilation appliances
Enter your mechanical ventilation (VMC) or ventilation system. Most run 24/7 all year round.
05
Domestic hot water
Electric water heater, heat pump water heater...
Water heating appliances
Electric, heat pump, gas or solar water heater. The tank capacity and power are entered for each appliance.
06
Cooking
Hob, oven, microwave...
Cooking appliances
Enter your hob, oven and other appliances. The schedule shows typical usage times.
07
Refrigeration
Fridges and freezers.
Fridges
Fridge 1
Freezers
No freezer? Leave this section empty.
08
Household appliances
Washing machine, dishwasher, tumble dryer.
09
Audiovisual
TVs, computers, games consoles.
TVs
Choose the size (power pre-filled) or select "Custom power" to enter your exact value.
Computers
Laptop, desktop or monitor only. The schedule reflects the hours of use.
Games consoles
Select the model: the power is pre-filled. Leave empty if you do not have one.
10
Lighting
Type of bulbs and usage schedule.
For each set of identical bulbs, add a group. The total power is calculated automatically.
Lighting groups
Choose the type (power per bulb pre-filled) or "Other" to enter an exact value.
11
Special equipment
Swimming pool, spa, electric vehicle...
12
Other appliances
Internet router, small appliances, etc.
13
Electricity contract
Enter the details of your electricity contract.
kWh/year
If you know your exact consumption (Linky meter reading), it will calibrate your solar simulation.
Entering these readings lets us measure your heating share instead of estimating it from your DPE.
⚠️ Enter metered kWh, not euros, unless your bill is based on your actual consumption rather than a fixed monthly instalment for the year. Your actual kWh are shown in your customer account, under consumption monitoring. Two months are often enough to refine the simulation: one in winter, one in summer.
If you are on peak / off-peak hours, the two lines on your bill show how much of your energy is used at night. It is the only measure of the timing of your consumption, which determines how much of your solar generation you will use on site.
14
Occupancy profile
Improves the accuracy of the solar self-consumption calculation.
You are ready!
Click "Calculate my consumption" to get your detailed consumption analysis.