How much will solar panels produce in Atlanta?

A 8 kWp system facing south at 35° tilt in Atlanta produces about 11,875 kWh a year. In a weak year that is 9,870 kWh, in a good one 13,881 kWh — 1,484 kWh per kWp.

That’s about 113% of a typical home’s yearly use (10,500 kWh).

Calculate for my roof

Based on 2014–2023 satellite weather data

Production by month

05001,0001,500JanJanuary: 8 kWp 868 kWh, range 681–1,056FebFebruary: 8 kWp 841 kWh, range 619–1,062MarMarch: 8 kWp 1,086 kWh, range 813–1,360AprApril: 8 kWp 1,136 kWh, range 934–1,339MayMay: 8 kWp 1,131 kWh, range 936–1,325JunJune: 8 kWp 1,027 kWh, range 842–1,211JulJuly: 8 kWp 1,066 kWh, range 883–1,250AugAugust: 8 kWp 1,038 kWh, range 854–1,222SepSeptember: 8 kWp 1,057 kWh, range 831–1,282OctOctober: 8 kWp 1,046 kWh, range 792–1,300NovNovember: 8 kWp 912 kWh, range 667–1,157DecDecember: 8 kWp 714 kWh, range 559–868

kWh per month

A typical day in April

The sunniest month in Atlanta. Output peaks around 11:00 solar time, at about 4.7 kWh in the best hour.

0:006:0012:0018:0023:00 4.7 0

Month by month

Month Weak year, kWh Typical year, kWh Good year, kWh
January 681 868 1,056
February 619 841 1,062
March 813 1,086 1,360
April 934 1,136 1,339
May 936 1,131 1,325
June 842 1,027 1,211
July 883 1,066 1,250
August 854 1,038 1,222
September 831 1,057 1,282
October 792 1,046 1,300
November 667 912 1,157
December 559 714 868
Year 9,870 11,875 13,881

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 Atlanta?

From November to February the system produces about 3,334 kWh, which is 28% of the year. The weakest month (December) gives roughly 714 kWh.

Is an east-west roof worth it in Atlanta?

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 Atlanta

Ground mount or roof in Atlanta?

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 Atlanta

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