"But Murray says the PUC can’t compel PSNH to buy from anyone." The jury is still out on that one. My guess is that State law says they are. <a href="http://gencourt.state.nh.us/rsa/html/XXXIV/378/378-38.htm" rel="nofollow" target="_blank">http://gencourt.state.nh.us/rsa/html/XXXIV/378/378-38.htm</a> "Any idea about how much taxpayer's money the city has spent to date on this sort of stuff?" What sort of stuff?