How much energy do solar panels produce in Challans?

A 5 kWp solar panel system in Challans, France produces approximately 6,426 kWh per year, based on EU PVGIS data.

How much can you save with solar panels in Challans?

A 5 kWp system without battery saves approximately €1,030 per year (accounting for 24% self-consumption and feed-in tariff for surplus). The payback period is 7.3 years.

What is the optimal panel angle in Challans?

The optimal tilt angle for solar panels in Challans is 38 degrees facing 1 degrees from south.

Solar Panels in Challans

France · 46.85°N, 1.88°W

Solar Potential

Good

1,285 kWh per kWp installed capacity

Your Solar Savings Estimate

Configure system size and battery to see realistic savings

Data last updated: March 2026

System Size

Battery Storage

Annual Output

6,426kWh

Net Annual Savings

€1,030

Payback Period

7.3 yrs

25-Year Net

€23,889

Savings Breakdown

Self-consumed (24% of 6,426 kWh)1,542 kWh × 0.256 €/kWh

→ Savings from own usage+€395

Injected to grid (76% of production)4,884 kWh × 0.130 €/kWh

→ Feed-in revenue+€635

Net Annual Savings€1,030

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

286 kWh

409 kWh

562 kWh

670 kWh

694 kWh

682 kWh

714 kWh

691 kWh

625 kWh

462 kWh

344 kWh

288 kWh

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Month	Energy (kWh)	Irradiation (kWh/m²)
January	286	67
February	409	96
March	562	135
April	670	166
May	694	174
June	682	175
July	714	185
August	691	178
September	625	158
October	462	113
November	344	81
December	288	67
Total	6,426	1,596

Environmental Impact

CO2 Saved Per Year

1,497 kg

Equivalent Trees Planted

68 trees

Optimal Panel Angle

38° tilt

Technical Details

Data Source: EU PVGIS v5.3
Coordinates: 46.8458°N, 1.87942°W
System Loss: 14%
Optimal Inclination: 38°
Optimal Azimuth: 1°
Yearly Irradiation: 1596 kWh/m2
Retail Electricity Price: 0.256 EUR/kWh
Feed-in Tariff: 0.130 EUR/kWh
Install Cost: 1,500 EUR/kWp

€1,574

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