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Porto district

Solar panels in Vila do Conde: what they produce

According to PVGIS, each kWp of panels facing south produces 1,511 kWh a year in Vila do Conde, in line with the median of Portugal's 308 municipalities (1,514 kWh). A 4 kWp system produces about 6,040 kWh a year here.

Vila do Conde in numbers

  1. kWh per kWp a year, facing south

    At 35° tilt with 14% losses, from SARAH2 satellite data for 2005 to 2020 (PVGIS).

  2. of Portugal's 308 municipalities

    In Porto district, it ranks 5th of 18.

  3. kWh per kWp in July, the best month

    In December, the worst, 1 kWp produces 86 kWh, 53% of the best month. An off grid system has to be sized for that month.

  4. less on a roof facing east

    West, 19% less; south east, 7% less; south west, 5% less.

Production of 1 kWp each month
86Jan103Feb126Mar138Apr154May151Jun162Jul159Aug145Sep114Oct87Nov86Dec

A 4 kWp system in Vila do Conde

Yearly production
6,040 kWh
Used at home (30%, the typical share)
€440 a year
Sold as surplus
€210 a year
Indicative price, turnkey, with VAT
€5,500 to €7,500
Payback
8 to 11 years

What you use saves about €0.24 per kWh; the surplus sells at about €0.05.

Run the numbers with your own bill

Rules and the grid

Systems above 700 W and up to 30 kW need a prior notice on the DGEG portal, made by the installing technician before installation. In most of mainland Portugal the distribution grid belongs to E‑REDES, which assigns the production CPE.

Read the DGEG registration guide

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