What if your running 600hps in day time .12 pm to 12 am . Cost me a 100$ a month last run .It depends on what you pay per KwH. You can bet it's going to be $15-$25 per month.
Here is the math: Monthly cost=(wattage/1000)*Kwh rate*running hours per day*30
(600/1000)*10 cents*12 hours/day*30 days/month= 2160 cents per month or $21.60
What if your running 600hps in day time .12 pm to 12 am . Cost me a 100$ a month last run .
What if your running 600hps in day time .12 pm to 12 am . Cost me a 100$ a month last run .
So 216kw used, now multiply by cost per kw, mine .07 so it would cost me $15.12
600*hours per day*days/1,000*kwh cost
Pennies on the dollar for what you could grow with 600w's!