Some more info on kwh price.

"Beginning Jan. 1, 2012, Chelan County PUD moved to a flat residential rate for electricity of just 2.7 cents per kilowatt hour."[1]

"energy costs can run as low as 2.88¢ per kWh and average 4.13¢ per kWh statewide for industrial customers." [2]

[1] https://www.chelanpud.org/my-pud-services/rates-and-policies

[2] http://choosewashingtonstate.com/why-washington/our-strength...

[edit] The parent article does state a price of 3cents/kwh.