HOME | Should I Make My Home Energy-Efficient?
The cheapest kWh of electricity, or gas, is the kWh you did not use! Even if you switch both your electricity and gas to a green tariff you are still using energy which you will be billed for, monthly, by your supplier(s).
People in the know update their heating system, appliances, and lighting to more energy-efficient products because if you reduce your electricity and gas consumption by 50-60-70% or more (even your green energy supply) your bills will go down significantly.