Tools and calculators

Whether you’re looking to improve your home or driving, our tools can help. Find out more about our tools and calculators.  

Our Home Energy Check helps you look at the energy you use through your whole house. Give your home a check-up and you could save around £250 a year.

Our Grants and Discounts Tool is the easiest way to find out what grants and funding to help with energy-efficient measures may be available to you.

Use our Buying an efficient car tool to compare different makes and models to find out which is more efficient.

Thinking of buying an electric vehicle (EV)? This tool can help you compare EVs so you can find the model that's right for you.

Want to know what driving an electric car is really like? Use our Electric Vehicle Network to ask an EV driver.

Our FuelGood app tracks your car journeys and flags when you’re driving inefficiently, helping you to save fuel, carbon and money.

Use our Green Homes Network to view inspiring case studies and to arrange to visit a green home near you.

Use our Renewables Selector tool to find out what renewable technologies are right for your home.

Find out how much you can save by installing these technologies.

Use our Solar Energy Calculator to estimate the income and savings you could make through the Feed-in tarriff scheme for eligible solar PV installations.

Use our Windspeed Prediction tool to calculate your wind speed and to find out whether a turbine is suitable for your home.

Use our Renewable Installer Finder tool to find an accredited installer near you.

Under the Renewable Heat Incentive, you could be eligible for quarterly cash payments. Use this RHI Calculator to estimate how much you could earn.

Use our Water Energy Calculator to work out how much water you use, and how much you could save.