http://www.overgrow.com/tools/powercost.php

good link to fiquar out what the power consumption going to cost you.
on the back of you bill should have you cost on each kw you will need this ongo for the calculator to work
Elfmannbca Reviewed by Elfmannbca on . Electricity problem.. HELP!!! Hi.. I don't know how this could be, but here it goes.. The electricity company called today, and told us that in 2004, we used 4000 KwH, and in 2005 it was up to 10000!!! How could this be??! Could a HPS use THAT much in electricity? Rating: 5