How much would you pay a month for a service that tells you how to?
I would pay $0 up front, and a percentage of savings (30%?). I would need this to require very little work on my part. You would need to prove to me that your technology created the savings. This is a very difficult problem for an individual home, as there are so many factors that determine energy consumption that are unpredictable, such as usage patterns (what happens when I take a vacation for 2 weeks out of the month) and weather. It is easier on a large sample size, which is why companies like Opower are being successful - they are playing the statistics