How much energy do solar panels produce in Windsor?

A 5 kWp solar panel system in Windsor, United Kingdom produces approximately 5,179 kWh per year, based on EU PVGIS data.

How much can you save with solar panels in Windsor?

A 5 kWp system without battery saves approximately €501 per year (accounting for 22% self-consumption and feed-in tariff for surplus). The payback period is 13.5 years.

What is the optimal panel angle in Windsor?

The optimal tilt angle for solar panels in Windsor is 40 degrees facing -5 degrees from south.

Solar Panels in Windsor

United Kingdom · 51.48°N, 0.60°W

Solar Potential

Moderate

1,036 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

5,179kWh

Net Annual Savings

€501

Payback Period

13.5 yrs

25-Year Net

€9,254

Savings Breakdown

Self-consumed (22% of 5,179 kWh)1,139 kWh × 0.280 €/kWh

→ Savings from own usage+€319

Injected to grid (78% of production)4,039 kWh × 0.045 €/kWh

→ Feed-in revenue+€182

Net Annual Savings€501

Installation cost (5 kWp × 1,350 €/kWp)€6,750

United Kingdom Solar Policy

Smart Export Guarantee (SEG): £0.03-0.05/kWh typical, up to £0.25 with battery. 0% VAT on solar + battery.

Source: Ofgem, UK BEIS

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

216 kWh

275 kWh

440 kWh

577 kWh

608 kWh

611 kWh

617 kWh

560 kWh

486 kWh

356 kWh

246 kWh

188 kWh

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Month	Energy (kWh)	Irradiation (kWh/m²)
January	216	50
February	275	65
March	440	105
April	577	142
May	608	152
June	611	155
July	617	159
August	560	142
September	486	121
October	356	86
November	246	58
December	188	44
Total	5,179	1,278

Environmental Impact

CO2 Saved Per Year

1,207 kg

Equivalent Trees Planted

55 trees

Optimal Panel Angle

40° tilt

Technical Details

Data Source: EU PVGIS v5.3
Coordinates: 51.48333°N, 0.6°W
System Loss: 14%
Optimal Inclination: 40°
Optimal Azimuth: -5°
Yearly Irradiation: 1278 kWh/m2
Retail Electricity Price: 0.280 EUR/kWh
Feed-in Tariff: 0.045 EUR/kWh
Install Cost: 1,350 EUR/kWp

€1,436

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