It just sounds like a scam to me, I could see the true statement going along the lines of "Let's subsidise the costs of your bill with repayments of a loan (so you are not really saving all that much anyway if anything at all, plus you get locked in with us as your supplier) then in a few years to come we can drop the scheme during one of our many rises in energy costs, maybe do a load of contract renewals for the new prices and weh hey! You are paying the same as everyone else but you also have to pay the loan back while being stuck with us as your supplier".
It's actually pretty genius, as the whole being under the guise of this making your home greener will appeal to many who want to help the envrionment.
You would be better off saving up your money to buy energy saving equipment yourself.
*realised that you can change supplier, but only if they also do this scheme. but it will still limit you, and i can bet it will be the smaller companies who are more competitive with prices that won't be running it.
Edited by EvilCycle (31st Jan 2013 5:40pm)