How much energy do solar panels produce in London?

A 5 kWp solar panel system in London, United Kingdom produces approximately 5,114 kWh per year, based on EU PVGIS data.

How much can you save with solar panels in London?

A 5 kWp system without battery saves approximately €507 per year (accounting for 23% self-consumption and feed-in tariff for surplus). The payback period is 13.3 years.

What is the optimal panel angle in London?

The optimal tilt angle for solar panels in London is 40 degrees facing -6 degrees from south.

Solar Panels in London

United Kingdom · 51.51°N, 0.13°W

Solar Potential

Moderate

1,023 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

5,114kWh

Net Annual Savings

€507

Payback Period

13.3 yrs

25-Year Net

€9,479

Savings Breakdown

Self-consumed (23% of 5,114 kWh)1,176 kWh × 0.280 €/kWh

→ Savings from own usage+€329

Injected to grid (77% of production)3,938 kWh × 0.045 €/kWh

→ Feed-in revenue+€177

Net Annual Savings€507

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

214 kWh

275 kWh

438 kWh

572 kWh

589 kWh

600 kWh

605 kWh

547 kWh

479 kWh

351 kWh

252 kWh

192 kWh

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Month	Energy (kWh)	Irradiation (kWh/m²)
January	214	50
February	275	65
March	438	104
April	572	141
May	589	147
June	600	153
July	605	156
August	547	140
September	479	120
October	351	85
November	252	59
December	192	45
Total	5,114	1,264

Environmental Impact

CO2 Saved Per Year

1,192 kg

Equivalent Trees Planted

54 trees

Optimal Panel Angle

40° tilt

Technical Details

Data Source: EU PVGIS v5.3
Coordinates: 51.50853°N, 0.12574°W
System Loss: 14%
Optimal Inclination: 40°
Optimal Azimuth: -6°
Yearly Irradiation: 1264 kWh/m2
Retail Electricity Price: 0.280 EUR/kWh
Feed-in Tariff: 0.045 EUR/kWh
Install Cost: 1,350 EUR/kWp

€1,433

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