It was a drive to invest in green energy. They put the cash into renewable energy production in order to comply with E.U. laws on emissions on the E.U. timetable. Given we leave the E.U. at the end of the year, I'm not sure the political will will be around for long. It used to be 10% p.a. locked, then they reduced it to 9 for new investors. I've never had enough cash to buy govt bonds, minimum investment of 10k chunks.