Cheapest electricity supplier

First Utility's cheapest gas and electricity tariff

First Utility has cheap tariffs to suit your needs

When you get your energy bill, you don’t want any surprises. And you don’t want to be paying more than you need to. We’re committed to providing cheap tariffs that are right for you. So make the first step in reducing your monthly outgoings and gaining real financial confidence by choosing First Utility.

We are the largest independent energy supplier in the UK and have created our simple tariffs to make things easy for you. We’ll always strive to get you the best deal and provide you with cheap energy no matter what the bigger companies are doing

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iSave Fixed December 2016

Our shortest fixed tariff

£905

Average annual bill
Quick quote
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iSave Fixed August 2017

Great fixed rates

£992

Average annual bill
Quick quote
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iControl Fixed September 2018

Our longest fixed tariff

£1,032

Average annual bill
Quick quote
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iSave Everyday Variable

Fully flexible

£1,135

Average annual bill
Quick quote

Which of our energy tariffs is right for you?


You can choose any one of our four simple tariffs, which all come with my:energy, our free energy management tool.

What does cheaper energy mean for you? We’ll do everything we can to get you the best deal for your energy. As one of the cheapest electricity and gas suppliers, we offer:

  • A Price Promise**
  • Smart meters (in partnership with Siemens) which you can use to view your daily energy consumption and monthly bills.
  • Better customer service
When you switch to First Utility, we’ll give you a warm welcome and help you fight to keep your bills low.

Find out more about our energy tariffs now.

*Average annual bill based on average usage of 3,200 kWh of electricity and 13,500 kWh of gas on a national basis.

** The price promise relates to the following competitor dual fuel tariffs (or any replacement tariffs as that company's Standard Tariff): British Gas - Standard, E.ON - Energy Plan, Scottish Power - Standard, npower - Standard, EDF - Standard (Variable), SSE - Standard Energy, in each case as offered directly by the relevant company with a Direct Debit payment method and paperless billing.
On a weekly basis we will compare the prices of this tariff against those listed above. The calculation will be based on average usage of 3,200kWh of electricity and 13,500kWh of gas on a national basis. If the cheapest average bill value based on average usage on a national basis of any of these tariffs falls below ours, then we will reduce our tariff to be lower than that average bill value within 60 days of your next Billing Cycle. These tariff comparisons will be listed on our website. National means “The Non-Exclusive Appointed Area” that shall mean any geographical area in mainland Great Britain.

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