Make a difference to our planet with sustainable living

Switching is quick and easy. Simply enter your postcode below and get started.


Offering you 100% renewable electricity at no extra cost, we are proud to sponsor One Home, who provide excellent guides and advice on sustainable living and the positive changes you can make.

iSupplyEnergy is owned by Vattenfall, a major European retailer and producer of electricity and heat. We offer 100% renewable electricity as part of our journey to help our customers power their lives in ever climate-smarter ways and become free from fossil fuel within one generation. With over £3 billion invested in UK renewables to date, we believe in building a sustainable future.

Get a Quote

To see how much you could save, pop your postcode in the box above, or call our helpful and friendly Switching Team on 0330 202 0373 quoting ONEHOME.


  • 100% renewable electricity from our own Vattenfall wind & solar farms
  • Gas and electricity supplier
  • Supply credit & prepayment meters
  • 24/7 online account management - view bills and submit meter readings
  • UK-based team - including Switching Specialists who can help you switch hassle free
  • Open Monday - Friday between 9am - 5pm (excluding bank holidays)
  • Excellent customer service  

Switch today and start saving on your energy bills

Switching is quick and easy. Simply enter your postcode to get started.