How much energy do solar panels produce in Llanelli?

A 5 kWp solar panel system in Llanelli, United Kingdom produces approximately 5,196 kWh per year, based on EU PVGIS data.

How much can you save with solar panels in Llanelli?

A 5 kWp system without battery saves approximately €502 per year (accounting for 22% self-consumption and feed-in tariff for surplus). The payback period is 13.4 years.

What is the optimal panel angle in Llanelli?

The optimal tilt angle for solar panels in Llanelli is 40 degrees facing 3 degrees from south.

Solar Panels in Llanelli

United Kingdom · 51.68°N, 4.16°W

Solar Potential

Moderate

1,039 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

5,196kWh

Net Annual Savings

€502

Payback Period

13.4 yrs

25-Year Net

€9,309

Savings Breakdown

Self-consumed (22% of 5,196 kWh)1,143 kWh × 0.280 €/kWh

→ Savings from own usage+€320

Injected to grid (78% of production)4,053 kWh × 0.045 €/kWh

→ Feed-in revenue+€182

Net Annual Savings€502

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

198 kWh

288 kWh

457 kWh

610 kWh

643 kWh

628 kWh

612 kWh

554 kWh

476 kWh

332 kWh

228 kWh

172 kWh

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Month	Energy (kWh)	Irradiation (kWh/m²)
January	198	46
February	288	67
March	457	108
April	610	148
May	643	159
June	628	158
July	612	155
August	554	138
September	476	117
October	332	80
November	228	54
December	172	40
Total	5,196	1,270

Environmental Impact

CO2 Saved Per Year

1,211 kg

Equivalent Trees Planted

55 trees

Optimal Panel Angle

40° tilt

Technical Details

Data Source: EU PVGIS v5.3
Coordinates: 51.68195°N, 4.16191°W
System Loss: 14%
Optimal Inclination: 40°
Optimal Azimuth: 3°
Yearly Irradiation: 1270 kWh/m2
Retail Electricity Price: 0.280 EUR/kWh
Feed-in Tariff: 0.045 EUR/kWh
Install Cost: 1,350 EUR/kWp

€1,384

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