Solar cost per watt
Also: price per watt, $/W
The price of a solar panel installation divided by the system's rated capacity in watts, used to compare quotes for systems of different sizes.
EnergySage publishes it per state and city rather than per installer; its California page showed $2.52/W before incentives when checked on 10 October 2026. A figure quoted without saying whether incentives are deducted is not comparable with one that does.