How much will solar panels produce in Ponta Delgada?

A 5 kWp system facing south at 35° tilt in Ponta Delgada produces about 6,856 kWh a year. In a weak year that is 5,752 kWh, in a good one 7,960 kWh — 1,371 kWh per kWp.

That’s about 229% of a typical home’s yearly use (3,000 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

02505007501,000JanJanuary: 5 kWp 408 kWh, range 333–482FebFebruary: 5 kWp 439 kWh, range 357–521MarMarch: 5 kWp 608 kWh, range 507–709AprApril: 5 kWp 639 kWh, range 529–749MayMay: 5 kWp 702 kWh, range 581–823JunJune: 5 kWp 661 kWh, range 545–777JulJuly: 5 kWp 703 kWh, range 576–829AugAugust: 5 kWp 754 kWh, range 628–880SepSeptember: 5 kWp 650 kWh, range 536–764OctOctober: 5 kWp 533 kWh, range 438–628NovNovember: 5 kWp 417 kWh, range 336–499DecDecember: 5 kWp 381 kWh, range 310–451

kWh per month

A typical day in August

The sunniest month in Ponta Delgada. Output peaks around 11:00 solar time, at about 2.9 kWh in the best hour.

0:006:0012:0018:0023:00 2.9 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 333 408 482
February 357 439 521
March 507 608 709
April 529 639 749
May 581 702 823
June 545 661 777
July 576 703 829
August 628 754 880
September 536 650 764
October 438 533 628
November 336 417 499
December 310 381 451
Year 5,752 6,856 7,960

The months don’t add up exactly to the yearly figure, because each one is the typical value across many years.

Common questions

How much do solar panels produce in winter in Ponta Delgada?

From November to February the system produces about 1,644 kWh, which is 24% of the year. The weakest month (December) gives roughly 381 kWh.

Is an east-west roof worth it in Ponta Delgada?

An east-west system typically produces 10–25% less per kWp than one facing south, but spreads production more evenly through the day. The exact difference depends on tilt and shading.

Compare an east-west roof for Ponta Delgada

Ground mount or roof in Ponta Delgada?

A ground mount can be tilted and aimed freely, which can add some yield, but it costs more and needs space. Compare both for your own plot.

Check a ground-mounted system in Ponta Delgada

Your roof is not an average roof

Set your own tilt, direction, shading and inverter limit and get a range for your address.

Calculate for my roof

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Climate data: Photovoltaic Geographical Information System (PVGIS) — European Commission, Joint Research Centre