Discover green at low prices

Switch to green energy in just a few clicks

Make a difference to our planet with sustainable living


Offering you 100% renewable electricity and greener gas at no extra cost, we are proud to sponsor One Home, who provide excellent 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 green energy 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.


Switch to green energy


To see how much you could save, enter your postcode above, or call our switching team on 0330 202 0373 and quote 'ONEHOME'.

Why Switch to iSupplyEnergy?

Renewable energy 

Easy to manage online account

UK based call centre




"Easy and quick,
definitely recommend."

Miss Lafferty
Trustpilot, 2019

Switching is easy as 1, 2, 3


Get a quote in 60 seconds,
choose from our competitive
tariffs and buy online


We’ll contact your current
supplier to switch your energy
supply so that you don’t have to


We’ll get in touch to let
you know your switch has

Switch today to start saving on your energy bills