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Eon energy: Your complete customer guide

Eon has grown to become one of the largest energy suppliers in the UK. Read on to learn more about the company and find out if Eon is the best supplier for your home.


UK domestic market: Great Britain 100% renewable energy
Number of UK customers: 4.3 million Installs smart meters for free
Electricity sources: Renewables Expensive rates
Fuel mix score:★★★★★ Difficult to contact
Selectra score:★★ High number of complaints

About Eon

Eon UK provides energy to around 4.3 million homes and businesses across the country. The supplier is owned by German company E.ON AG. Prior to its 2002 acquisition, the company was known as Powergen.

Let's take a look at the supplier's inception in Germany and how its growth in the UK market has evolved.

  • Eon Timeline
  • 2000 - Eon was created in 2000 through the merger of two German energy companies - VEBA and VIAG.
  • 2002 - Operations started in the UK when Eon acquired the previously government-owned Powergen.
  • 2003 - Eon entered the gas market through the acquisition of Ruhrgas (later: Eon Ruhrgas), which boasted a strong presence in more than 20 European countries.
  • 2005 - Eon acquired Swedish power company Sydkraft AB, which then changed its corporate name to Eon Sverige.
  • 2014 - UK energy sector regulator Ofgem ordered the supplier to pay 330,000 customers £12 million due to poor sales practices between 2010 and 2013. It was the most substantial penalty ever imposed on a UK energy supplier.
  • 2016 - The supplier announced that it would abstain from fossil energy in the future. It transferred its fossil energy businesses to a new company, Uniper. This arm was sold off in 2017.
  • 2018 - Eon acquired renewable energy utility company, Innogy, through a complicated €43 billion asset swap deal between Eon, Innogy and RWE (Innogy's controlling shareholder). Eon announced in the same year that it would axe 500 jobs in the UK.
  • 2019 - The supplier absorbed Npower’s domestic retail division.
  • 2020 - Eon makes plans to merge Npower Business Solutions with its own Industrial & Commercial supply units by the end of 2021.

Has Eon bought Npower?

Eon acquired the domestic retail division of Npower in 2019. In April 2020, Npower said it would also combine its business retail operations.

The acquisition makes Eon the second largest domestic supplier in the UK, just behind British Gas and in front of Ovo Energy.

What are the supplier’s plans and prices?

electricity bill

Eon offers a number of different plans for all meter types and payment methods. Prices depend on your location and the amount of energy that your household consumes. As with most UK energy suppliers, Eon’s prepayment meter tariffs tend to be more expensive than plans for customers who have credit meters.

For a medium-sized home in London that uses the average consumption levels of both gas and electricity and pays via a monthly direct debit, Eon’s standard variable tariff would cost just over £92 per month and around £1,106 per year.

By switching to a cheaper tariff with a different supplier, Eon customers could easily save hundreds of pounds on their energy bills over the course of the year.

Head to our complete Eon tariffs guide for more information about the supplier’s energy plans and prices. If you’re looking for the best deal on the market, we recommend you also check out the following Selectra guides:

Compare the cheapest energy tariffs on the marketOur trained advisors can find you the cheapest deals in just a few minutes. Call 020 3966 4692 or get a free callback now.

Reviews: What do customers say?

On customer review site Trustpilot, Eon UK has an overall ranking of 3.7 of out five stars. It appears that customers have had quite mixed experiences with the supplier – while 58% of customers have rated Eon as either great or excellent, 37% of the customers who left reviews on Trustpilot gave the supplier a poor or bad rating.

In Citizens Advice’s most recent quarterly ranking of UK energy suppliers, Eon came out middle of the pack at 18th place out of 41 providers. The supplier seemed to fare well when it came to customer guarantees and its switching process. However, the supplier only received two out of five stars when it came to complaints and how easy it was to contact the supplier.

For a more detailed analysis, check out our Eon Energy reviews guide.

Customer login: How do I access my account?

Are you trying to sign in to your Eon customer account? Customers can easily manage their energy account via the supplier’s website or app.

To access your account online, simply go to the Eon homepage and click on where it says Login in the top right corner in red letters. You will then be prompted to enter your email address or username. Click on where it says Continue and enter your password.

For instructions on how to set up an account, access the app and learn more about what you can do with your online account, head to our complete Eon login guide.

How do I submit my Eon meter reading?

electricity meter

Are you trying to submit your Eon meter reading? If you have a second-generation smart meter (SMETS2), the meter will automatically submit the meter reading to Eon. If you have a standard credit meter or a first-generation smart meter (SMETS1) that is not compatible with the supplier, you will need to manually submit your Eon meter readings either online, via the app or by calling the supplier.

You don’t need to have already created an online account in order to be able to submit an Eon meter reading online. To submit the reading, go to the supplier’s homepage. Click on My account in the top search bar, and then click on where it says Give us a meter reading. You will need to provide your name and account number.

If you’re tired of having to submit an Eon meter reading each month, we recommend having a smart meter installed. Since this type of meter will automatically send this information to Eon, you will no longer need to worry about providing meter readings to ensure accurate billing. You’ll also be able to monitor your usage, which will help to cut back on how much you spend.

Eon top up for prepayment customers

Customers that have a standard prepayment meter must top up their Eon electric key or gas card at a local PayPoint, Payzone or local Post Office.

If you run out of credit and are not able to top up, your meter will automatically provide you with at least £5 emergency credit. This amount will be deducted from your balance the next time you are able to top up.

If you have a smart meter, you can either top up your meter online or via the Eon app. The Eon app is free to download. In addition to allowing you to top up your meter in just a few seconds, it will also store all of your payment history and top-up codes.

For Eon customers with smart meters, your meter will not disconnect from 4 pm to 11 am Monday through Friday, nor on Sundays. As with emergency credit, you’ll need to pay for the energy you consumed during those times the next time you top up.

Prepayment meter problems?Call us to solve your top issues quickly and without hassle. Call 020 3966 4692 or get a free callback now.

Does Eon install smart meters?

Eon has already installed 2 million smart meters across the UK. The supplier began rolling out the second generation of smart meters (SMETS2) in 2018. These meters are interoperable among suppliers, meaning that your meter won’t lose its smart functionality if you switch to a different energy supplier.

If Eon is unable to install a SMETS2 meter in your household, the supplier will install a first-generation smart meter (SMETS1). If you change energy supplier, the meter may revert to ‘dumb mode’ and you would need to submit your meter readings manually.

Eon claims it will be upgrading all SMETS1 meters remotely before the end of the year. Customers will then be able to change suppliers without having to worry if the meter will lose its smart functionality.

Head to our Eon smart meter guide for more information.

Eon boiler cover

Eon has teamed up with HomeServe, a leading home assistance provider, to provide a range of heating, plumbing, electrics and boiler cover options.

Only homeowners who live in the property are eligible for Eon boiler cover through HomeServe. Tenants and landlords are not eligible. Are you a landlord? Check out our guide to boiler cover for landlords to find the best plan for your property.

When you take out a boiler cover, Eon will send an engineer to make sure the boiler is running properly. The engineer will also complete a free boiler service to ensure that it continues to run efficiently.

The boiler coverage helpline is open 24 hours a day, 365 days a year.

Boiler cover plans and pricing

Eon electric and boiler coverage plans range from just £.99 per month to £19.99 per month. To have your boiler included, you will need to pay at least £7.99 for the most basic plan. When you take out an Eon boiler cover, you can get a free boiler service during the first year of the agreement.

The table below breaks down Eon’s boiler coverage plans and prices, as well as what they include.

Cover plan Price per month What it covers
Electrical emergency and breakdown cover £0.99 Electrics (electrical wiring system and immersion heater repairs)
Gas boiler breakdown cover £7.99 Gas boiler, gas supply pipe, boiler service
Gas central heating cover £12.99 Gas boiler breakdown cover + gas central heating
Electrics and heating cover £15.99 Gas central heating cover + electrics
Plumbing, heating and electrics £19.99 Electrics and heating cover + plumbing and drainage + water supply pipe

Not sure which Eon boiler cover is the best option for your home? Give us a call on 020 3966 4692 to get free advice on which boiler coverage you should choose.

Does Eon provide business energy services?

flame and lightbulb

Eon provides business energy solutions for small and medium sized businesses (SMEs), as well as for industrial and commercial organisations.

For SMEs, Eon offers fixed-rate contracts (which guarantee that your rates won’t change) that last from one to three years. For larger businesses, Eon offers a wide range of both fixed and flexible contracts.

Check out our Eon business energy guide for more information.

Does Eon provide the Warm Home Discount?

Eon customers may be able to take advantage of the Warm Home Discount. This government scheme is designed to help households that are at risk of fuel poverty during the winter months, which tend to be more fuel-intensive.

The Warm Home Discount takes the form of a one-off credit of £140 on your electricity bills from October to March. Find out if you qualify with our Eon Warm Home Discount guide.

If you’re not eligible for the Warm Home Discount, there are still lots of other ways to get support, such as with the Eon Energy Fund. Check out our guide to government grants and schemes to see what help you can get with your energy bills.

It’s also likely that you could save even more money than what you would receive from the Warm Home Discount by simply switching to a cheaper energy tariff. Give us a call on 020 3966 4692 to get a free comparison of the tariffs available in your area.

How do I contact Eon?

The quickest way to contact Eon is via the supplier’s live chat on its website. Customers can also call 0345 052 0000 to speak with an Eon customer service representative. Lines are open Monday through Friday from 8 am to 8 pm and on Saturdays from 8 am to 6 pm. Eon customers can also reach out to the supplier via Facebook or Twitter.

You can also contact us at Selectra on 020 3966 4692 to get expert energy advice for free. Our call-wait time is typically just a few seconds. Lines are open Monday through Friday from 7:30 am to 8 pm.

The table below breaks down the main Eon contact details. For further information regarding how to contact Eon (perhaps for an emergency or a complaint), check out our complete Eon contact guide.

Eon contact
Contact method Details
Eon contact number 0345 052 0000
Eon mailing address Westwood Way Westwood Business Park, Coventry CV4 8LG, United Kingdom
Power cut 105
Gas emergency 0800 111 999
Energy Ombudsman 0330 440 1624

Tired of speaking to automated machines?Our expert energy advisers are on the phone to help you with your energy query. No wait times or endless menus. Call today for free on 020 3966 4692 or get a free callback now.

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