i ran 1 600 hps 12/12 light. 1 200 watt cfl 24 hours, and 3 fans, 1 12 inch, 1 24 inch and one 6 inch all normal house fans, my electricity was about 60 a month and it only went up to about 70 after all the gear was ran and the grow was on. i also added a 1500 watt heater in their when lights were out.
i live in southern oregon as well and i did soil.
all in all my setup fee was about 300 and my bill every month only 10 xtra bucks