I'm in the PNW and I pay 11c/kWh (well, I would, if I didn't have solar). Seattle is 13c, King County averages 16c. Where are you paying 5c/kWh? That's exceptionally cheap.
Correct me if I'm wrong but doesn't PG&E charge one rate for the first ?? kwh and then more for the rest? Perhaps OP made a mistake of using the base rate (which you will blow past if you have too many computers or AC)
Seattle is nearer 14c (13.75) and likely to increase over the next decade (because of nonsense like[1]).
[1]: This alone will increase costs by something like 4c/kWh from these 70 year old dams: https://www.king5.com/article/news/investigations/skagit-riv...