Solar Panels in Douai

France · 50.37°N, 3.08°E

2out of 5

Solar Potential

Moderate

1,098 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

5,490kWh

Net Annual Savings

€894

Payback Period

8.4 yrs

25-Year Net

€19,872

Savings Breakdown

Self-consumed (26% of 5,490 kWh)1,427 kWh × 0.256 €/kWh
→ Savings from own usage+€365
Injected to grid (74% of production)4,063 kWh × 0.130 €/kWh
→ Feed-in revenue+€529
Net Annual Savings€894
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

207 kWh
300 kWh
491 kWh
632 kWh
641 kWh
641 kWh
635 kWh
584 kWh
532 kWh
392 kWh
246 kWh
189 kWh
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
MonthEnergy (kWh)Irradiation (kWh/m²)
January20748
February30070
March491118
April632156
May641161
June641164
July635165
August584150
September532134
October39295
November24658
December18944
Total5,4901,363

Environmental Impact

CO2 Saved Per Year

1,279 kg

Equivalent Trees Planted

58 trees

Optimal Panel Angle

39° tilt

Technical Details

Data Source
EU PVGIS v5.3
Coordinates
50.37069°N, 3.07922°E
System Loss
14%
Optimal Inclination
39°
Optimal Azimuth
-2°
Yearly Irradiation
1363 kWh/m2
Retail Electricity Price
0.256 EUR/kWh
Feed-in Tariff
0.130 EUR/kWh
Install Cost
1,500 EUR/kWp

Want to compare Douai with another city?

Use our interactive calculator to compare any European location.

Open Calculator