Skip to content

Leiria district

Solar panels in Leiria: what they produce

According to PVGIS, each kWp of panels facing south produces 1,513 kWh a year in Leiria, in line with the median of Portugal's 308 municipalities (1,514 kWh). A 4 kWp system produces about 6,050 kWh a year here.

Leiria 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 Leiria district, it ranks 10th of 16.

  3. kWh per kWp in August, the best month

    In November, the worst, 1 kWp produces 92 kWh, 57% 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, 8% less; south west, 4% less.

Production of 1 kWp each month
94Jan106Feb126Mar131Apr146May144Jun160Jul160Aug144Sep118Oct92Nov92Dec

A 4 kWp system in Leiria

Yearly production
6,050 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

Ask for quotes you can compare.

Twelve quick choices, then your contact details. Free for you.

Free, no obligation. Your details only go to installers with your permission, at the end of the form.