Self-consumption with surplus sale.
Based on 8,760 hourly PVGIS calculations.
System size
6.0 kWp
Annual generation
6,960 kWh/year
Installation cost
11,400 €
Simulation context
Location Bordeaux
Goal Maximum financial return
Simulation date 16/10/2026
Occupancy profile Working, away during the day
Self-consumption0.5 %
Self-sufficiency64.0 %
Generation
6,960kWh/year
Consumption
5,200kWh/year
Payback
13years
Elec. inflation
3 %/year
Technical configuration
Installed capacity
6.0 kWp (recommended)
Number of panels
15 × 400 Wp
Panel type
Standard monocrystalline
Type of installation
On the roof (on-roof mounting)
Area required
≈ 39.0 m²
Orientation
South
Tilt
30°
Mounting
On-roof mounting
Installation cost
11,400€
Self-consumption bonus (prime à l'autoconsommation)
0€
Self-consumed
3,312kWh
Surplus exported to the grid
3,648kWh
calcul-solaire.fr · PVGIS data (JRC, European Commission)
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calcul-solaire.fr · Simulation summary
16/10/2026
Generation and consumption by month
Green areas show the months when generation exceeds consumption.
Source: PVGIS 5.3 (JRC, European Commission), TMY 2005–2019.
GenerationConsumptionSolar surplus
880
440
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Average hourly profile, typical day
Solar generation and consumption hour by hour over an average day of the year.
Solar generationConsumption
0:00
3:00
6:00
9:00
12:00
15:00
18:00
21:00
Generation peaks between 10:00 and 15:00: schedule your washing machine, dishwasher and hot water for these slots.
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This document is for information only. The results shown are estimates calculated from historical weather data (PVGIS TMY 2005–2019) and the regulated tariffs in force at the time of the simulation. They are neither a quote nor a guarantee of generation or savings. Actual yields depend on local conditions, the quality of the installation and how tariffs evolve. Grid connection costs (~800 €–1,400) are not included. calcul-solaire.fr: personal use only.
calcul-solaire.fr · PVGIS data (JRC, European Commission)