Saving energy

In the UK, home energy contributes around 22% of the average carbon footprint, with over half of this coming from our heating systems. This means we can significantly cut our carbon footprint through a few simple home energy efficiency improvements.

The Energy Savings Trust has developed a tool to calculate how much CO2 and money you can save by applying some of these measures. Examples of 11 easy, effective, cost-saving actions are listed here, with figures based on a three-bedroom, semi-detached, gas-heated house.

Energy saving measures
Energy saving measurePotential saving (£ per year)Reduction in CO2 emissions (kg)
Always turn off your lights when you leave a room£1024
Fit energy saving light bulbs in your home£40135
Turn appliances off and avoid standby£30126
Wash your laundry at 30°C£1044
Top up loft insulation to a depth of 270mm£60299
Boil only the amount of water needed£1028
Turn down your thermostat by 1°C£50284
Buy Energy Saving Trust Recommended productsup to £90up to 338
Fit a hot water tank jacket£40192
Fit draught proofing£30152
Install cavity wall insulation (mostly relevant to homes built between 1920 and 1980)£150799


Much more information and advice is available from the Energy Savings Trust.

Green energy

Switch to a renewable electricity supplier. You can get up to 100% of your electricity from renewable sources, making a significant reduction to you carbon emissions. For impartial information about suppliers, visit Green Electricity.

Energy efficiency at work

The Carbon Trust helps organisations of all sizes to cut their energy bills and carbon emissions with practical advice, publications, interest-free loans, and on-site surveys. 

Energy efficiency at school

Carbon Detectives’ Kit is an online resource for schools in England to calculate their footprint and set targets for reduction, and includes practical advice and comparisons with other schools. 

Further home energy inspiration

The Yellow House is a renovated 1930s ex-council house where energy consumption was reduced by more than 60%. The Yellow House website contains lots of clever ideas and information.

Cartoon image of a snake disappearing through closing door

Last year nearly 100,000 specimens were loaned to scientific institutions and researchers worldwide.