As you've probably already read, that is an impossible question to answer. However I think you're probably asking overall where does Austin stand as far as cost of energy, etc. Comparatively speaking, Austin has one of the lowest costs of living in the US of any major city, and that would include utility costs as well. So basically, Austin is not a very expensive place to live with regard to utilities, and most other things for that matter.
If you are considering a move to Austin and do not yet have a Realtor to help you, feel free to contact me and I will do all I can to assist. I help buyers from start to finish at no cost to them, and am one of the top agents in the greater Austin area. Thanks, Joe
Joe Jarusinsky, Realtor/Master Instructor, Keller Williams Realty, Austin's #1 Real Estate Company, Ranked #1 by Buyers and Sellers (JD Power & Assoc. 2012)