Solar Panels in São Martinho

Portugal · 32.64°N, 16.94°W

4out of 5

Solar Potential

Very Good

1,597 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

7,983kWh

Net Annual Savings

€709

Payback Period

7.8 yrs

25-Year Net

€16,361

Savings Breakdown

Self-consumed (18% of 7,983 kWh)1,437 kWh × 0.220 €/kWh
→ Savings from own usage+€316
Injected to grid (82% of production)6,546 kWh × 0.060 €/kWh
→ Feed-in revenue+€393
Net Annual Savings€709
Installation cost (5 kWp × 1,100 €/kWp)€5,500

Portugal Solar Policy

UPAC system: surplus at 90% of MIBEL market price (~€0.04-0.08/kWh). 23% VAT (6% temporary rate expired July 2025).

Source: ERSE, Eurostat H1 2025

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

520 kWh
548 kWh
720 kWh
744 kWh
774 kWh
742 kWh
793 kWh
795 kWh
695 kWh
648 kWh
525 kWh
479 kWh
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
MonthEnergy (kWh)Irradiation (kWh/m²)
January520129
February548137
March720181
April744189
May774198
June742192
July793207
August795209
September695181
October648167
November525132
December479119
Total7,9832,041

Environmental Impact

CO2 Saved Per Year

1,860 kg

Equivalent Trees Planted

85 trees

Optimal Panel Angle

29° tilt

Technical Details

Data Source
EU PVGIS v5.3
Coordinates
32.6448°N, 16.93843°W
System Loss
14%
Optimal Inclination
29°
Optimal Azimuth
-10°
Yearly Irradiation
2041 kWh/m2
Retail Electricity Price
0.220 EUR/kWh
Feed-in Tariff
0.060 EUR/kWh
Install Cost
1,100 EUR/kWp

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