It's in occupational health and safety, heavy on the industrial hygiene side: biological, chemical and physical health hazards, their exposures, controls and what they do to the human body.
Yeah, thought I mentioned that but somehow missed it, have a one year independent study, it's no longer a thesis as we don't have to defend it but it does get reviewed by a panel. I enjoy the topic I've picked for it so that part doesn't feel like school, ties in with my work. I was just getting so sick of schooling/classes, 10+ years now of post secondary, my head hurts!
As for the electric bill...did go up but my comp, the server and the htpc are all running 24/7 anyways so not a huge change.