Switch to our cheapest green energy tariff

iSupplyEnergy is owned by Vattenfall, which has nearly nine million electricity and gas customers across Europe. Start your quote now. 

Our Fuels

"Great service and competitive prices"

David, Peterborough

Our Promise to You

We’re here to help

24/7 online account to view your bills and submit meter readings, with a UK-based support team here to help.

Easy to switch

Get a quote in less than 60 seconds. It’s that quick and simple.

Low prices for all

Offering you dual fuel and single fuel gas and electricity tariffs for 12, 24 and 36 months at competitive prices.


Switch today and start saving on your energy bills

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