Wash. Rev. Code § 64.04.170
In any action for interference with a solar easement, if the instrument creating the easement does not specify any appropriate and applicable remedies, the court may choose one or more remedies including but not limited to the following:
(1) Actual damages as measured by increased charges for supplemental energy, the capital cost of the solar energy system, and/or the cost of additional equipment necessary to supply sufficient energy:
[ 1979 ex.s. c 170 s 13.]
Severability—1979 ex.s. c 170: See note following RCW 64.04.140.