How much energy do solar panels produce in Valongo?

A 5 kWp solar panel system in Valongo, Portugal produces approximately 7,208 kWh per year, based on EU PVGIS data.

How much can you save with solar panels in Valongo?

A 5 kWp system without battery saves approximately €663 per year (accounting for 20% self-consumption and feed-in tariff for surplus). The payback period is 8.3 years.

What is the optimal panel angle in Valongo?

The optimal tilt angle for solar panels in Valongo is 35 degrees facing 2 degrees from south.

Solar Panels in Valongo

Portugal · 41.19°N, 8.50°W

Solar Potential

Very Good

1,442 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

7,208kWh

Net Annual Savings

€663

Payback Period

8.3 yrs

25-Year Net

€15,075

Savings Breakdown

Self-consumed (20% of 7,208 kWh)1,442 kWh × 0.220 €/kWh

→ Savings from own usage+€317

Injected to grid (80% of production)5,766 kWh × 0.060 €/kWh

→ Feed-in revenue+€346

Net Annual Savings€663

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

434 kWh

492 kWh

595 kWh

641 kWh

727 kWh

709 kWh

789 kWh

778 kWh

686 kWh

543 kWh

421 kWh

392 kWh

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Month	Energy (kWh)	Irradiation (kWh/m²)
January	434	104
February	492	120
March	595	148
April	641	164
May	727	189
June	709	186
July	789	209
August	778	208
September	686	180
October	543	138
November	421	103
December	392	94
Total	7,208	1,843

Environmental Impact

CO2 Saved Per Year

1,679 kg

Equivalent Trees Planted

76 trees

Optimal Panel Angle

35° tilt

Technical Details

Data Source: EU PVGIS v5.3
Coordinates: 41.18883°N, 8.49857°W
System Loss: 14%
Optimal Inclination: 35°
Optimal Azimuth: 2°
Yearly Irradiation: 1843 kWh/m2
Retail Electricity Price: 0.220 EUR/kWh
Feed-in Tariff: 0.060 EUR/kWh
Install Cost: 1,100 EUR/kWp

€1,610

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