Money for nothing
The problem as i see it was the "powers that be" underestimated the financial acumen of various bandwagon jumping companies under the "rent your roof" schemes. Any company that couldnt work out a (about) 8% annual return was far better than that available in the traditional markets needed serious advising. Mightily hacked off with the apologists for these companies bleating about how they're only helping poorer customers cut their bills. Absolute Crap!! Theyre in it to line their pockets substantially which is paid for by (my bill said 11%) a big chunk of everyones energy bill.