My friends brother just got a grow box from his cuz and is thinking about using it, but doesn't know if it will use too much electicity, it uses 8 24w cfl's for veg and 8 42w cfls for flowering and it has small fans for venting. would that show a big change on electricty bills?
It depends where you live and how much a Kilowatt Hour costs you. Where I live it's about 7 cents per KW/h. I would highly doubt that 'that' grow box would use up more than $30/month. I think $30 is being generous. But I'm no seasoned grower. Just my two cents.
He won't notice a big difference on his electricity bill. Maybe an extra 20 to 30 bucks a month tops.
Cool, so with calculator, hes using 8 of the 24w cfl, so he's only using 224 watts, im not sure what my energy rate was but using the one they already had it was only like 12 bucks a month.