Rankings · Utilities

Lowest rooftop solar output by state

Rooftop solar output, 1 kW system.

This measure has no better end. The order describes the states, it does not rank them — see the other direction.

Estimated annual electricity from a 1 kW fixed roof-mounted photovoltaic system at the county’s population-weighted center. This is solar resource potential, not a roof quote: it does not account for roof orientation, shading, panel choice, system losses, local incentives, or your electricity use.

  1. 1Alaska956 kWh/yr
  2. 2Washington1,130 kWh/yr
  3. 3Oregon1,219 kWh/yr
  4. 4West Virginia1,265 kWh/yr
  5. 5Vermont1,269 kWh/yr
  6. 6Pennsylvania1,295 kWh/yr
  7. 7Ohio1,302 kWh/yr
  8. 8Michigan1,317 kWh/yr
  9. 9New York1,323 kWh/yr
  10. 10New Hampshire1,324 kWh/yr
  11. 11Montana1,328 kWh/yr
  12. 12Connecticut1,332 kWh/yr
  13. 13Massachusetts1,347 kWh/yr
  14. 14Kentucky1,349 kWh/yr
  15. 15Maine1,349 kWh/yr
  16. 16Indiana1,362 kWh/yr
  17. 17New Jersey1,368 kWh/yr
  18. 18Rhode Island1,372 kWh/yr
  19. 19Wisconsin1,373 kWh/yr
  20. 20Tennessee1,379 kWh/yr
  21. 21Illinois1,385 kWh/yr
  22. 22Minnesota1,390 kWh/yr
  23. 23Virginia1,395 kWh/yr
  24. 24North Dakota1,403 kWh/yr
  25. 25Alabama1,417 kWh/yr
  26. 26Arkansas1,418 kWh/yr
  27. 27Maryland1,418 kWh/yr
  28. 28Delaware1,424 kWh/yr
  29. 29Iowa1,424 kWh/yr
  30. 30Mississippi1,427 kWh/yr
  31. 31Georgia1,428 kWh/yr
  32. 32Missouri1,428 kWh/yr
  33. 33North Carolina1,442 kWh/yr
  34. 34District of Columbia1,443 kWh/yr
  35. 35Idaho1,451 kWh/yr
  36. 36Louisiana1,453 kWh/yr
  37. 37South Carolina1,464 kWh/yr
  38. 38South Dakota1,485 kWh/yr
  39. 39Nebraska1,511 kWh/yr
  40. 40Hawaii1,519 kWh/yr
  41. 41Texas1,523 kWh/yr
  42. 42Kansas1,530 kWh/yr
  43. 43Oklahoma1,538 kWh/yr
  44. 44Florida1,549 kWh/yr
  45. 45Utah1,561 kWh/yr
  46. 46Wyoming1,575 kWh/yr
  47. 47Colorado1,653 kWh/yr
  48. 48California1,684 kWh/yr
  49. 49Nevada1,771 kWh/yr
  50. 50Arizona1,791 kWh/yr
  51. 51New Mexico1,825 kWh/yr
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Source: NREL PVWatts. · How this is built