Madeira
Solar panels in Porto Santo: what they produce
According to PVGIS, each kWp of panels facing south produces 1,516 kWh a year in Porto Santo, in line with the median of Portugal's 308 municipalities (1,514 kWh). A 4 kWp system produces about 6,060 kWh a year here.
Porto Santo in numbers
kWh per kWp a year, facing south
At 35° tilt with 14% losses, from SARAH2 satellite data for 2005 to 2020 (PVGIS).
of Portugal's 308 municipalities
In Madeira, it ranks 6th of 11.
kWh per kWp in August, the best month
In December, the worst, 1 kWp produces 98 kWh, 67% of the best month. An off grid system has to be sized for that month.
less on a roof facing east
West, 15% less; south east, 6% less; south west, 3% less.
A 4 kWp system in Porto Santo
- Yearly production
- 6,060 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 billRules and the grid
The law is the same as on the mainland, Decreto‑Lei n.º 15/2022, but registration goes to the regional government's services rather than DGEG (article 264). The grid belongs to EEM in Madeira.
On the map
Neighbouring municipalities
| Municipality | Distance between seats | kWh per kWp |
|---|---|---|
| Machico | 54 km | 1,374 |
| Santana | 56 km | 1,175 |
| Santa Cruz | 62 km | 1,482 |
| Funchal | 70 km | 1,563 |
| São Vicente | 71 km | 1,283 |
| Câmara de Lobos | 73 km | 1,557 |
Sources
- PVGIS, European Commission Joint Research Centre (yields per municipality, 1 kWp, 35° tilt, 14% losses, SARAH2 data for 2005 to 2020)
- Direção-Geral do Território, CAOP 2025 (official boundaries of the 308 municipalities)
- 4gnews, home solar prices in 2026 from DGEG certified installers in Lisbon, Porto and Coimbra, turnkey, 23% VAT included, 30 July 2026
- Eurostat, household electricity prices (nrg_pc_204), Portugal, 2,500 to 4,999 kWh a year, all taxes included, second half of 2025
- Fraunhofer ISE, Recent Facts about Photovoltaics in Germany, version of 26 August 2026 (self consumption without and with a battery)
- Portal Energia, the surplus regime in 2026 (fixed price around €0.05 per kWh)
- Decreto‑Lei n.º 15/2022, Diário da República (article 264: in the Azores and Madeira the regional services do what DGEG does on the mainland)
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