How much will solar panels produce in Salt Lake City?

A 8 kWp system facing south at 35° tilt in Salt Lake City produces about 14,542 kWh a year. In a weak year that is 12,202 kWh, in a good one 16,883 kWh — 1,818 kWh per kWp.

That’s about 138% of a typical home’s yearly use (10,500 kWh).

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Based on 2014–2023 satellite weather data

Production by month

05001,0001,5002,000JanJanuary: 8 kWp 895 kWh, range 713–1,077FebFebruary: 8 kWp 1,025 kWh, range 812–1,238MarMarch: 8 kWp 1,320 kWh, range 1,094–1,545AprApril: 8 kWp 1,369 kWh, range 1,137–1,601MayMay: 8 kWp 1,439 kWh, range 1,191–1,687JunJune: 8 kWp 1,416 kWh, range 1,183–1,648JulJuly: 8 kWp 1,436 kWh, range 1,201–1,671AugAugust: 8 kWp 1,447 kWh, range 1,202–1,692SepSeptember: 8 kWp 1,353 kWh, range 1,127–1,579OctOctober: 8 kWp 1,246 kWh, range 1,007–1,485NovNovember: 8 kWp 924 kWh, range 774–1,074DecDecember: 8 kWp 797 kWh, range 640–955

kWh per month

A typical day in August

The sunniest month in Salt Lake City. Output peaks around 12:00 solar time, at about 6.1 kWh in the best hour.

0:006:0012:0018:0023:00 6.1 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 713 895 1,077
February 812 1,025 1,238
March 1,094 1,320 1,545
April 1,137 1,369 1,601
May 1,191 1,439 1,687
June 1,183 1,416 1,648
July 1,201 1,436 1,671
August 1,202 1,447 1,692
September 1,127 1,353 1,579
October 1,007 1,246 1,485
November 774 924 1,074
December 640 797 955
Year 12,202 14,542 16,883

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 Salt Lake City?

From November to February the system produces about 3,641 kWh, which is 25% of the year. The weakest month (December) gives roughly 797 kWh.

Is an east-west roof worth it in Salt Lake City?

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 Salt Lake City

Ground mount or roof in Salt Lake City?

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 Salt Lake City

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