The Energy Saving Trust has an excellent website covering all things from saving energy to fitting a wind turbine to your home. It includes subjects such as:
- Wind turbines
- Solar water heating
- Solar electricity
- Micro combined heat and power
- Ground and air source heat pumps
The really good bit is that you are given an idea of the potential costs and savings involved. There is also a handy wind speed calculator so you can see if a wind turbine is appropriate for your area.