E.ON Energy Review

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Tariffs | Price | Customer Service | Reviews | App/Website | Fuel Mix | Billing | Smart Meters | FAQs

E.ON Energy Review Summary


  • E.ON Rewards points
  • The first of the “big six” to switch its customers to 100% renewable electricity
  • Excellent support for customers using smart meters


  • Not the cheapest energy supplier
  • Website and app could be better
  • Above average complaint numbers, although complaints are resolved swiftly

Who are E.ON Energy?

E.ON operate in 30 countries worldwide and have over 33 million customers, including 4.3 million customers in the UK. The company recently took a majority stake in Innogy, the company that owns Npower.

They are one of the “big six” energy suppliers and are based in Annesley, Nottinghamshire.

What tariffs do E.ON Energy offer?

E.ON offer a range of fixed-rate tariffs, covering either 12 or 24 month terms. There is a £30 exit fee per fuel if you leave before the end of the fixed-rate term. All of the fixed rate tariffs require customers to have a smart meter installed if they do not already have one. One of the fixed-rate tariffs give customers the option of a 25% discount on boiler cover via Homeserve.

There are also two variable-rate tariffs, one for standard customers and one for customers who are eligible for the Warm Home Discount. These variable-rate tariffs are not dependent on the customer having a smart meter. There are no minimum contract terms on the variable-rate tariffs, and no exit fees.

In addition, there are two variable-rate tariffs for pre-payment customers. One of these tariffs is for pre-payment customers with smart meters and the other one is for customers without a smart meter.

There is a tariff for electric vehicle owners. This is a 24-month, fixed-rate tariff with a £30 exit fee per fuel. E.ON claim that the tariff comes with 850 free miles, although in practice that comes in the form of a £15 credit every six months so whether that equates to the claimed 850 miles will depend on a number of factors.

E-on also offer ‘feed-in’ tariffs for people who generate their own renewable energy.

How do E.ON Energy compare price?

E.ON only scored three out of five stars for value for money in the Which? energy companies review.

What do other E.ON Energy reviews say?

E.ON have a fairly average 3.7 out of five stars on Trustpilot. However, it appears that when they do well they do really well, but when they perform badly they perform really badly.  44% of the TrustPilot reviewers rate E.ON as excellent but 34% rate E.ON as bad.

Which? puts E.ON in joint 24th place out of 35 energy suppliers with an overall ranking of 61%. Citizen’s Advice give E.ON 3.35 out of five stars, putting them in 18th place out of 40 energy suppliers.

How green is E.ON Energy’s energy?

In 2019, E.ON were the first of the UK’s “big six” energy suppliers to switch all of their customers to 100% renewable electricity. Over the past ten years they have invested over £3 billion in renewable energy generation in the UK.

What is E.ON Energy’s customer service like?

E.ON only score three out of five stars for customer service in the Which? energy companies review, although they score four out of five stars for complaints handling. According to Citizen’s Advice, they receive 27 per 10,000 customers which is higher than average, but they resolve the majority of complaints within eight weeks.

They can be contacted by phone and their call centre is open between 8am and 8pm on weekdays, as well as 8am to 6pm on Saturdays. Citizen’s Advice say that the average call centre wait time is three minutes 11 seconds which is reasonable, if not the fastest response time.

There is also a live chat feature on the E.ON website, or you can email them.

What is E.ON Energy’s website/app like?

E.ON’s website looks professional, as you’d expect from a large company. It also contains a lot of information, although it’s not always obvious where that information can be found.

The website allows E.ON’s customers to perform the usual account management transactions, including viewing their energy usage, paying bills, etc., and you can use the website to contact E.ON via live chat. However, E.ON haven’t gone the extra mile in the same way that some of the smaller, newer energy suppliers have when it comes to online account management functionality. This is a bit disappointing given that E.ON are clearly keen to get all of their customers using smart meters.

It’s a similar story where E.ON’s app is concerned. They do have an app which is compatible with Android devices as well as Apple’s iOS devices. But again, although the app lets customers perform the usual account management transactions, it doesn’t go the extra mile. The Android version scores just 3.3 out of five stars on Google’s Play Store and just 3.1 out of five stores on Apple’s App Store.

What billing options are available?

E.ON prefer customers to pay by direct debit, although payments via credit or debit card can also be made online if a customer finds that they are using more energy than expected and the direct debits are not covering the cost of the energy they are consuming.

Customers can ensure that their direct debits are accurate by supplying regular meter readings. Customers with smart meters do not need to provide meter readings as their smart meter submits meter readings for them automatically.

Customers who prefer not to pay by direct debit can by by credit or debit card, or by posting a cheque. However, E.ON charge more if customers choose to pay this way.

E.ON offer a discount for paperless billing, although customers can choose to receive paper bills instead.

Pre-payment accounts are also available. These need to be topped up via a Post Office, Payzone or PayPoint outlet, although pre-payment customers with smart meters can also top up their accounts online.

Do E.ON Energy offer smart meters?

E.ON offer smart meters and in fact, they are compulsory on some of E.ON’s tariffs. Smart meters are available for pre-payment customers as well as customers paying by direct debit.

If you have an existing smart meter and switch to E.ON, a second generation smart meter should work without any problems. If you have a first generation smart meter, E.ON can upgrade your smart meter for you remotely so you can retain your smart functionality.

Do E.ON Energy offer a recommend a friend referral scheme?

E.ON offer a friend referral scheme. Both the new customer and the existing customer get a £40 reward. This comes in the form of a gift card that can be used at a variety of retailers. There is no limit to the number of referrals that can be made.

Below are a few quick questions you may need answers to along with our E.ON Energy review:

Do they work with pre-payment meters?

E.ON offer two pre-payment tariffs, one for customers with smart meters and one for customers with traditional meters. Both tariffs are variable-rate tariffs with no minimum contract length and no exit fee.

Do they accept Economy 7?

E.ON accept Economy 7 customers. They accept Economy 10 customers as well.

Are they signed up to the Warm Home Discount?

E.ON are signed up to the Warm Home Discount. They also operate an Affordable Warmth scheme which provides eligible customers with free cavity wall and loft insulation.

Are they signed up to the Energy Switch Guarantee?

E.ON are signed up to the Energy Switch Guarantee. According to Citizen’s Advice, 97.5% of switches are completed within 21 days.

Do they mention about the Priority Services Register?

E.ON operate a Priority Services Register to help vulnerable customers.

Do they offer a ‘Dual Fuel’ discount?

E.ON no longer offer a ‘Duel Fuel’ discount. Customers who are on a fixed-rate tariff and currently receive such a discount will continue to receive the discount until the end of their fixed-rate term.

Will they offer to pay a customer’s exit fees when they join them?

E.ON will not pay any exit fees that have been imposed by a customer’s previous energy supplier. Any such fees remain the responsibility of the customer.

What happens if you move home whilst with them?

If you move home when you’re an E.ON customer you will need to provide a final meter reading and a few other details. You can either do this via the E.ON website or over the phone. You should do this within two days of your move. When you provide those details you will be asked whether you want to continue to use E.ON as your energy supplier in your new home.

Do they offer any incentives for joining? 

E.ON customers earn 1,500 E.ON Rewards points each year. These can be converted into either Bonusbond vouchers or Tesco Clubcard points.

Bonusbond vouchers can be spent at over 18,000 places in the UK and 500 E.ON Rewards points buys a £5.00 voucher.

The same 500 points can also be exchanged for 500 Tesco Clubcard points. These would be worth £5.00 if converted into Tesco vouchers, although they could be worth £20.00 if they were converted via Tesco Clubcard Boost.

How to contact E.ON Energy

You can contact E.ON Energy in a number of ways. Below as part of our E.ON Energy review we’ve detailed all their means of contact:

Customer Email: email.queries@eonenergy.com

Telephone: 0345 052 0000

Office Hours:Monday to Friday, 8am to 8pm. Saturday, 8am to 6pm. Closed on Sundays

Office Address: Newstead Court, Little Oak Drive, Annesley, Nottinghamshire, NG15 0DR




How do I switch to E.ON Energy?

The easiest way to switch to E.ON Energy is through Energy Helpline’s comparison website here. This will allow you to check if E.ON Energy is one of the cheapest suppliers for you (tariffs vary based on your area) and will allow you to quickly and easily switch to them.

8.5 Total Score
E.ON Energy Review

E.ON has 4.3 million customers in the UK. The company recently took a majority stake in Innogy, the company that owns Npower.

Customer Service
  • E.ON Rewards points
  • The first of the “big six” to switch its customers to 100% renewable electricity
  • Excellent support for customers using smart meters
  • Not the cheapest energy supplier
  • Website and app could be better
  • Above average complaint numbers, although complaints are resolved swiftly
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