If at all possible, it’d be great to interface with one of the utility providers to just grab that data (similar as to how www.mint.com can accumulate and gather financial data). But that seems like a gigantic pain for the developer to get in front of the multiple types of power suppliers and their various interfaces (and where they hide this information). But as a “nice to have” feature, I would like to just tell Sense “hey, I use Unitil, here is my account login, can you help me reconcile my bill?”
Just being able to give approximate prices and adjust month start/month end would be a great start in the right direction. It might not be perfect, but in terms of estimation, it could be “pretty good”.