‘Homemade’ green energy is becoming more and more accessible. Ways to do it include:
Solar photovoltaic (solar PV) – these panels harvest the sun’s energy and convert it into electricity you can use at home.
Solar thermal – these panels take the sun’s energy and use it to heat your water through coils that feed into your water cylinder.
Wind turbines  – you can use these to generate your own power when there’s enough of a breeze.
For more information on generating your own green energy, head to the Energy Saving Trust website.