The data will be available on OpenGrid.io.. there is a team of 17 trying to figure out how to use the data.
At almost 7M, I am not impressed by the lack of utility they expect from these sensors. Any one of a number of applications could pay for it, but at least the article does not make it seem like they have an end in mind. It will be interesting to see of this is not a boondoggle. Technologists should certainly check out the website as data becomes available, there maybe some opportunities that would otherwise be impossible.