In the USA Washington state has 3 to 5 cent power.
To be picky, there are 2 counties IN the state of Washington with electric BASE rates around 3 cents/KWh (Chelan and Douglas) - actual cost will be a little higher due to meter charges and such, but they're both still easily under 4 cents/KWh and probably close to 3 if you use a lot amount of power. Do note that they've been having drought conditions in the Columbia river watershed upriver from that area, so the local PUDs have been adding surcharges for part of the last 2-3 years due to the lack of the usual water flow.
There is a third county (Douglas) where you can easily get a little under 5 cents/KWh (base rate a bit over 4 unless you use a LOT of power, then you can get a little under) on a smallish farm. Same surcharges issue for the same reason.
Watch out for the rents though, especially in/near Wenatchee itself. They're not SoCal or SeaTac level high, but....
MegaBigPower's actual farm location is not actually in Wenatchee, I'm pretty sure, based on comments they've posted - I suspect they're on the other side of the river somewhere in Douglass county like East Wenatchee or Wenatchee Beach areas, perhaps further north.
Most of the REST of Washington state has quite a bit higher power rates.