Hello. I am 16, and I live with my mom. I recently built a rig with a GTX 960 and we could see the power bill go up about $30. I'm really interested in saving for the 1080, but I want to know how much it will add to the power bill. I'd feel really bad making my mom pay a lot of money. I use my PC maybe 5 days a week with 1-2 hours of gaming and 2 hours of browsing/working.