How much energy do solar panels produce in Alfragide?

A 5 kWp solar panel system in Alfragide, Portugal produces approximately 8,108 kWh per year, based on EU PVGIS data.

How much can you save with solar panels in Alfragide?

A 5 kWp system without battery saves approximately €720 per year (accounting for 18% self-consumption and feed-in tariff for surplus). The payback period is 7.6 years.

What is the optimal panel angle in Alfragide?

The optimal tilt angle for solar panels in Alfragide is 34 degrees facing 2 degrees from south.

Solar Panels in Alfragide

Portugal · 38.73°N, 9.22°W

Solar Potential

Excellent

1,622 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

8,108kWh

Net Annual Savings

€720

Payback Period

7.6 yrs

25-Year Net

€16,701

Savings Breakdown

Self-consumed (18% of 8,108 kWh)1,459 kWh × 0.220 €/kWh

→ Savings from own usage+€321

Injected to grid (82% of production)6,648 kWh × 0.060 €/kWh

→ Feed-in revenue+€399

Net Annual Savings€720

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

506 kWh

545 kWh

683 kWh

725 kWh

803 kWh

786 kWh

864 kWh

859 kWh

757 kWh

617 kWh

490 kWh

473 kWh

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Month	Energy (kWh)	Irradiation (kWh/m²)
January	506	121
February	545	133
March	683	169
April	725	184
May	803	206
June	786	204
July	864	225
August	859	225
September	757	196
October	617	156
November	490	120
December	473	113
Total	8,108	2,053

Environmental Impact

CO2 Saved Per Year

1,889 kg

Equivalent Trees Planted

86 trees

Optimal Panel Angle

34° tilt

Technical Details

Data Source: EU PVGIS v5.3
Coordinates: 38.73203°N, 9.2192°W
System Loss: 14%
Optimal Inclination: 34°
Optimal Azimuth: 2°
Yearly Irradiation: 2053 kWh/m2
Retail Electricity Price: 0.220 EUR/kWh
Feed-in Tariff: 0.060 EUR/kWh
Install Cost: 1,100 EUR/kWp

€1,791

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