How much energy do solar panels produce in Winchester?

A 5 kWp solar panel system in Winchester, United Kingdom produces approximately 5,256 kWh per year, based on EU PVGIS data.

How much can you save with solar panels in Winchester?

A 5 kWp system without battery saves approximately €508 per year (accounting for 22% self-consumption and feed-in tariff for surplus). The payback period is 13.3 years.

What is the optimal panel angle in Winchester?

The optimal tilt angle for solar panels in Winchester is 39 degrees facing -4 degrees from south.

Solar Panels in Winchester

United Kingdom · 51.07°N, 1.32°W

Solar Potential

Moderate

1,051 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

5,256kWh

Net Annual Savings

€508

Payback Period

13.3 yrs

25-Year Net

€9,494

Savings Breakdown

Self-consumed (22% of 5,256 kWh)1,156 kWh × 0.280 €/kWh

→ Savings from own usage+€324

Injected to grid (78% of production)4,100 kWh × 0.045 €/kWh

→ Feed-in revenue+€184

Net Annual Savings€508

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

282 kWh

456 kWh

597 kWh

620 kWh

621 kWh

618 kWh

563 kWh

493 kWh

356 kWh

247 kWh

187 kWh

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Month	Energy (kWh)	Irradiation (kWh/m²)
January	216	50
February	282	66
March	456	109
April	597	147
May	620	155
June	621	158
July	618	160
August	563	144
September	493	123
October	356	86
November	247	59
December	187	44
Total	5,256	1,302

Environmental Impact

CO2 Saved Per Year

1,225 kg

Equivalent Trees Planted

56 trees

Optimal Panel Angle

39° tilt

Technical Details

Data Source: EU PVGIS v5.3
Coordinates: 51.06513°N, 1.3187°W
System Loss: 14%
Optimal Inclination: 39°
Optimal Azimuth: -4°
Yearly Irradiation: 1302 kWh/m2
Retail Electricity Price: 0.280 EUR/kWh
Feed-in Tariff: 0.045 EUR/kWh
Install Cost: 1,350 EUR/kWp

€1,492

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