How much energy do solar panels produce in Chaves?

A 5 kWp solar panel system in Chaves, Portugal produces approximately 7,312 kWh per year, based on EU PVGIS data.

How much can you save with solar panels in Chaves?

A 5 kWp system without battery saves approximately €673 per year (accounting for 20% self-consumption and feed-in tariff for surplus). The payback period is 8.2 years.

What is the optimal panel angle in Chaves?

The optimal tilt angle for solar panels in Chaves is 35 degrees facing 1 degrees from south.

Solar Panels in Chaves

Portugal · 41.74°N, 7.47°W

Solar Potential

Very Good

1,462 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

7,312kWh

Net Annual Savings

€673

Payback Period

8.2 yrs

25-Year Net

€15,372

Savings Breakdown

Self-consumed (20% of 7,312 kWh)1,462 kWh × 0.220 €/kWh

→ Savings from own usage+€322

Injected to grid (80% of production)5,850 kWh × 0.060 €/kWh

→ Feed-in revenue+€351

Net Annual Savings€673

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

391 kWh

494 kWh

622 kWh

658 kWh

748 kWh

741 kWh

837 kWh

820 kWh

704 kWh

546 kWh

396 kWh

353 kWh

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Month	Energy (kWh)	Irradiation (kWh/m²)
January	391	93
February	494	120
March	622	154
April	658	167
May	748	194
June	741	196
July	837	225
August	820	221
September	704	185
October	546	138
November	396	96
December	353	85
Total	7,312	1,874

Environmental Impact

CO2 Saved Per Year

1,704 kg

Equivalent Trees Planted

77 trees

Optimal Panel Angle

35° tilt

Technical Details

Data Source: EU PVGIS v5.3
Coordinates: 41.74019°N, 7.46879°W
System Loss: 14%
Optimal Inclination: 35°
Optimal Azimuth: 1°
Yearly Irradiation: 1874 kWh/m2
Retail Electricity Price: 0.220 EUR/kWh
Feed-in Tariff: 0.060 EUR/kWh
Install Cost: 1,100 EUR/kWp

€1,652

Want to compare Chaves with another city?

Use our interactive calculator to compare any European location.

Open Calculator