Took this from MSE - sounds a very interesting deal
Isis Solar is fitting free solar panel systems for homeowners worth over £12,000, slashing leccy bills by £120-ish a year, they will fit them free of charge but as solar power cant be stored any excess leccy made will be pumped back into the grid.
Alternatively,The other option’s to pay for your own solar power system. This way, you grab all the payments for solar energy produced, estimated by the Energy Saving Trust at a brilliant £800 year. This is on top of the bill savings.
The Government’s promised the scheme will last for 25 years, so that’s a decent £23,000 return. This works out cheaper if you want the solar panels for more than ten years, though, of course, you need to stump up a typical cost of £12,500. Jump to Get paid to generate solar power for more.
Free scheme is currently only available to those who live south of Oxford.