How much will solar panels produce in Teresina?

A 5 kWp system facing north at 35° tilt in Teresina produces about 7,962 kWh a year. In a weak year that is 6,685 kWh, in a good one 9,240 kWh — 1,593 kWh per kWp.

That’s about 398% of a typical home’s yearly use (2,000 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 5 kWp 476 kWh, range 394–558FebFebruary: 5 kWp 483 kWh, range 402–564MarMarch: 5 kWp 592 kWh, range 496–688AprApril: 5 kWp 665 kWh, range 553–778MayMay: 5 kWp 768 kWh, range 640–897JunJune: 5 kWp 827 kWh, range 691–963JulJuly: 5 kWp 877 kWh, range 733–1,021AugAugust: 5 kWp 885 kWh, range 743–1,027SepSeptember: 5 kWp 771 kWh, range 646–895OctOctober: 5 kWp 675 kWh, range 564–787NovNovember: 5 kWp 524 kWh, range 436–613DecDecember: 5 kWp 473 kWh, range 395–551

kWh per month

A typical day in August

The sunniest month in Teresina. Output peaks around 11:00 solar time, at about 2.3 kWh in the best hour.

0:006:0012:0018:0023:00 2.3 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 394 476 558
February 402 483 564
March 496 592 688
April 553 665 778
May 640 768 897
June 691 827 963
July 733 877 1,021
August 743 885 1,027
September 646 771 895
October 564 675 787
November 436 524 613
December 395 473 551
Year 6,685 7,962 9,240

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 Teresina?

From May to August the system produces about 3,357 kWh, which is 42% of the year. The weakest month (December) gives roughly 473 kWh.

Is an east-west roof worth it in Teresina?

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

Compare an east-west roof for Teresina

Ground mount or roof in Teresina?

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 Teresina

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