How much will solar panels produce in João Pessoa?

A 5 kWp system facing north at 35° tilt in João Pessoa produces about 8,169 kWh a year. In a weak year that is 6,859 kWh, in a good one 9,480 kWh — 1,634 kWh per kWp.

That’s about 408% of a typical home’s yearly use (2,000 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

02505007501,000JanJanuary: 5 kWp 576 kWh, range 483–669FebFebruary: 5 kWp 582 kWh, range 485–680MarMarch: 5 kWp 724 kWh, range 602–845AprApril: 5 kWp 728 kWh, range 596–859MayMay: 5 kWp 741 kWh, range 611–872JunJune: 5 kWp 698 kWh, range 578–819JulJuly: 5 kWp 730 kWh, range 601–858AugAugust: 5 kWp 805 kWh, range 672–939SepSeptember: 5 kWp 752 kWh, range 628–876OctOctober: 5 kWp 712 kWh, range 597–827NovNovember: 5 kWp 604 kWh, range 507–701DecDecember: 5 kWp 558 kWh, range 467–649

kWh per month

A typical day in August

The sunniest month in João Pessoa. 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 483 576 669
February 485 582 680
March 602 724 845
April 596 728 859
May 611 741 872
June 578 698 819
July 601 730 858
August 672 805 939
September 628 752 876
October 597 712 827
November 507 604 701
December 467 558 649
Year 6,859 8,169 9,480

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 João Pessoa?

From May to August the system produces about 2,974 kWh, which is 36% of the year. The weakest month (December) gives roughly 558 kWh.

Is an east-west roof worth it in João Pessoa?

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 João Pessoa

Ground mount or roof in João Pessoa?

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 João Pessoa

Your roof is not an average roof

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

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