How much will solar panels produce in Brasília?

A 5 kWp system facing north at 35° tilt in Brasília produces about 8,293 kWh a year. In a weak year that is 6,962 kWh, in a good one 9,624 kWh — 1,659 kWh per kWp.

That’s about 415% 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 590 kWh, range 486–694FebFebruary: 5 kWp 544 kWh, range 442–646MarMarch: 5 kWp 669 kWh, range 549–789AprApril: 5 kWp 676 kWh, range 544–808MayMay: 5 kWp 814 kWh, range 666–963JunJune: 5 kWp 805 kWh, range 672–937JulJuly: 5 kWp 896 kWh, range 743–1,049AugAugust: 5 kWp 867 kWh, range 720–1,015SepSeptember: 5 kWp 775 kWh, range 648–902OctOctober: 5 kWp 662 kWh, range 542–782NovNovember: 5 kWp 517 kWh, range 420–615DecDecember: 5 kWp 552 kWh, range 447–657

kWh per month

A typical day in July

The sunniest month in Brasília. Output peaks around 11:00 solar time, at about 2.6 kWh in the best hour.

0:006:0012:0018:0023:00 2.6 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 486 590 694
February 442 544 646
March 549 669 789
April 544 676 808
May 666 814 963
June 672 805 937
July 743 896 1,049
August 720 867 1,015
September 648 775 902
October 542 662 782
November 420 517 615
December 447 552 657
Year 6,962 8,293 9,624

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 Brasília?

From May to August the system produces about 3,382 kWh, which is 40% of the year. The weakest month (November) gives roughly 517 kWh.

Is an east-west roof worth it in Brasília?

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 Brasília

Ground mount or roof in Brasília?

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 Brasília

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

All cities in Brazil

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