Solar Panels in Saint-Herblain

France · 47.21°N, 1.65°W

3out of 5

Solar Potential

Good

1,230 kWh per kWp installed capacity

Your Solar Savings Estimate

Configure system size and battery to see realistic savings

Data last updated: March 2026

Annual Output

6,150kWh

Net Annual Savings

€986

Payback Period

7.6 yrs

25-Year Net

€22,541

Savings Breakdown

Self-consumed (24% of 6,150 kWh)1,476 kWh × 0.256 €/kWh
→ Savings from own usage+€378
Injected to grid (76% of production)4,674 kWh × 0.130 €/kWh
→ Feed-in revenue+€608
Net Annual Savings€986
Installation cost (5 kWp × 1,500 €/kWp)€7,500

France Solar Policy

Obligation d'Achat: surplus buyback at €0.13/kWh for ≤9kWp. Full sale option at €0.23/kWh. 5.5% VAT for ≤9kWp systems.

Source: CRE tariff schedule Q1 2026, Eurostat H1 2025

The savings estimates shown are for informational purposes only and do not constitute financial advice. Actual savings depend on your specific installation, roof condition, shading, consumption patterns, and future electricity price changes. Feed-in tariffs and regulations change frequently. Always obtain quotes from certified installers and consult a financial advisor before making investment decisions.

Monthly Energy Production

269 kWh
383 kWh
540 kWh
644 kWh
665 kWh
655 kWh
683 kWh
662 kWh
600 kWh
439 kWh
335 kWh
275 kWh
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
MonthEnergy (kWh)Irradiation (kWh/m²)
January26963
February38390
March540130
April644160
May665168
June655169
July683178
August662172
September600152
October439108
November33579
December27564
Total6,1501,534

Environmental Impact

CO2 Saved Per Year

1,433 kg

Equivalent Trees Planted

65 trees

Optimal Panel Angle

38° tilt

Technical Details

Data Source
EU PVGIS v5.3
Coordinates
47.21154°N, 1.651°W
System Loss
14%
Optimal Inclination
38°
Optimal Azimuth
-2°
Yearly Irradiation
1534 kWh/m2
Retail Electricity Price
0.256 EUR/kWh
Feed-in Tariff
0.130 EUR/kWh
Install Cost
1,500 EUR/kWp

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