How much will solar panels produce in Santander?

A 5 kWp system facing south at 35° tilt in Santander produces about 6,170 kWh a year. In a weak year that is 5,180 kWh, in a good one 7,160 kWh — 1,234 kWh per kWp.

That’s about 187% of a typical home’s yearly use (3,300 kWh).

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Based on 2014–2023 satellite weather data

Production by month

0200400600800JanJanuary: 5 kWp 306 kWh, range 213–398FebFebruary: 5 kWp 382 kWh, range 268–496MarMarch: 5 kWp 516 kWh, range 411–620AprApril: 5 kWp 586 kWh, range 478–695MayMay: 5 kWp 675 kWh, range 561–788JunJune: 5 kWp 613 kWh, range 510–716JulJuly: 5 kWp 642 kWh, range 525–758AugAugust: 5 kWp 641 kWh, range 527–754SepSeptember: 5 kWp 595 kWh, range 488–701OctOctober: 5 kWp 496 kWh, range 390–602NovNovember: 5 kWp 330 kWh, range 228–433DecDecember: 5 kWp 294 kWh, range 201–387

kWh per month

A typical day in May

The sunniest month in Santander. Output peaks around 12:00 solar time, at about 2.7 kWh in the best hour.

0:006:0012:0018:0023:00 2.7 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 213 306 398
February 268 382 496
March 411 516 620
April 478 586 695
May 561 675 788
June 510 613 716
July 525 642 758
August 527 641 754
September 488 595 701
October 390 496 602
November 228 330 433
December 201 294 387
Year 5,180 6,170 7,160

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 Santander?

From November to February the system produces about 1,312 kWh, which is 22% of the year. The weakest month (December) gives roughly 294 kWh.

Is an east-west roof worth it in Santander?

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 Santander

Ground mount or roof in Santander?

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 Santander

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