Greener energy

I'd like the Scottish government to really get behind greener energy so long as it doesn't become an excuse to rip people off. There really is a danger in Britain from the rip off culture. I would really like to heat my home from ground source geothermal energy but I am stopped from doing it by the cost. Most people need the government to hand out very substantial grants to enable them to get into this. The average cost of completing a renewable scheme/project for the home is around £8000 and the Scottish Government through the Energy Trust will give a grant of around £4000. This is good but I want to completely remove my dependency on energy suppliers which would mean installing geothermal, wind generating, solar generating and maybe air source heating plant. This would allow me to remove the gas supply to my home and all heating would be free once the cost of installation was completely paid which could take 10 years.