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Saving energy in College


  • If every student turned their laptop off overnight we would save enough energy in a week to microwave over 22 tonnes of baked beans.
  • If every Cambridge student only boiled the water they needed when making a cup of tea in one day we would save enough energy to do over 3600 loads of washing.
  • Some simple ways that we can all reduce our electricity usage include:
    • Only boiling as much water as we need when using the kettle.
    • Turning off lights when leaving the room.
    • Turning off appliances when not in use.
    • Boil water in the kettle and then transfer it into a pan instead of boiling it on the hob.
    • Put a lid on pans when cooking.


  • The main source of residential emissions is heating and, in 2019, residential emissions accounted for around 15% of all UK greenhouse gas emissions (BEIS, 2021).
  • It’s important to make sure that we’re not using more energy than we need to heat buildings.
  • An easy way to avoid having to turn up the thermostat is by putting on another layer – it both has a lower carbon footprint and will warm you up quicker.
  • One of the best ways to make sure our heating is energy efficient is by preventing heat loss, two great ways you can do this are by:
    • Shutting doors when entering and leaving rooms.
    • Shutting windows overnight and in winter.

Get involved

  • Join The Cambridge Climate Society, dedicated to connecting, educating and empowering students through their climate events.
  • Subscribe to our mailing lists and watch out for our new sustainability newsletter.
  • Join Green Impact, an environmental accreditation scheme which presents awards to staff and students making their Colleges and Departments more sustainable.
  • Become more informed about carbon by getting involved with the Cambridge Carbon Literacy Project.
  • Develop your own environmental interventions as part of the Engage for Change program. ·
  • Apply for a project or paid internship with the Living Lab to improve the University’s environmental sustainability.