Solar Panels in Carmarthen

United Kingdom · 51.86°N, 4.31°W

1out of 5

Solar Potential

Low

989 kWh per kWp installed capacity

Your Solar Savings Estimate

Configure system size and battery to see realistic savings

Data last updated: March 2026

Annual Output

4,943kWh

Net Annual Savings

€490

Payback Period

13.8 yrs

25-Year Net

€8,936

Savings Breakdown

Self-consumed (23% of 4,943 kWh)1,137 kWh × 0.280 €/kWh
→ Savings from own usage+€318
Injected to grid (77% of production)3,806 kWh × 0.045 €/kWh
→ Feed-in revenue+€171
Net Annual Savings€490
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

185 kWh
268 kWh
438 kWh
583 kWh
616 kWh
603 kWh
583 kWh
531 kWh
446 kWh
315 kWh
216 kWh
159 kWh
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
MonthEnergy (kWh)Irradiation (kWh/m²)
January18543
February26863
March438104
April583142
May616153
June603153
July583149
August531133
September446110
October31576
November21651
December15937
Total4,9431,216

Environmental Impact

CO2 Saved Per Year

1,152 kg

Equivalent Trees Planted

52 trees

Optimal Panel Angle

39° tilt

Technical Details

Data Source
EU PVGIS v5.3
Coordinates
51.85552°N, 4.30535°W
System Loss
14%
Optimal Inclination
39°
Optimal Azimuth
2°
Yearly Irradiation
1216 kWh/m2
Retail Electricity Price
0.280 EUR/kWh
Feed-in Tariff
0.045 EUR/kWh
Install Cost
1,350 EUR/kWp

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