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E.ON (2021) review: A reasonable choice for green electricity

Our Rating 
Price when reviewed 
93.59
per month for a medium energy user on a dual-fuel tariff

E.ON Next offers 100% renewable electricity as standard but not the best ratings for the original E.ON

Pros 
Major generator and supplier of renewable electricity
Clear tariffs with no exit fees through E.ON Next
Strong commitment to smart meters
Cons 
You’ll find cheaper deals elsewhere
High number of customer complaints
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Starting life in the UK in 1989 as Powergen, E.ON earned its (slightly) newer name after it was taken over by German firm E.ON way back in 2002. It was already one of Great Britain’s largest energy suppliers and a member of the so-called “Big Six” when it took over another industry giant, Npower, in November 2019, making it an even more formidable energy supplier.

At the end of 2020, in fact, E.ON had a combined market share of 18% of the home electricity market and 15% of the home gas market, and it says it currently has around 3.8 million customers in the UK.

Owning wind farms and a biomass-fuelled plant that generates energy from recycled wood waste, E.ON is also a generator of electricity, with a particular focus on renewable sources, including an investment in solar generation. All the electricity it supplies to homes is supposedly matched by electricity from renewable sources.

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E.ON (2021) review: The tariffs

Next Online v6

In 2020, E.ON launched a new brand called E.ON Next for homes and small businesses, which supplies 100% renewable electricity. New customers now start as E.ON Next by default, and all existing Npower and E.ON contracts will eventually be moved over to it.

This was the cheapest tariff we were quoted for on the E.ON Next website for someone using a “medium” amount of energy (2,900kWh of electricity and 12,000kWh of gas per year). It was also the cheapest quote among the three traditional big suppliers in our survey: British Gas, EDF Energy and E.ON.

The rates you’re charged for the energy you use are fixed for a year and you have to manage your account online. You must agree to having a smart meter fitted if you don’t have one already. There are no exit fees, either, so you are free to switch to another deal whenever you like.

Climate Positive v3

As well as 100% renewable electricity, all the gas you use is carbon offset with the Carbon Positive v3 tariff. E.ON will also plant five trees on your behalf, which will offset your carbon footprint even more. 

This deal is also fixed for a year, online only and with no exit fees, and you must agree to having a smart meter installed.

Next Flex

This is a variable tariff, so the rates you’re charged for your electricity and gas could go up or down, and there’s no end date or any exit fees.

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Next 2 Year v4

As the name implies, Next 2 Year v4 is a two-year fixed deal with no exit fees. You must also agree to having a smart meter fitted to take out this tariff, which send your meter readings to your suppliers automatically and let you monitor your energy use and costs in real time.

Next 1 Year v4

This is the one-year version of the deal above and has the same monthly cost. As with all of E.ON Next’s tariffs, it comes with 100% renewable electricity and no exit fees.

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E.ON (2021) review: Tariff price comparison

Pay-monthly tariffsNext Online v6Climate Positive v3Next FlexNext 2 Year v4Next 1 Year v4
Annual cost£1,123.10 (£93.59 a month)£1,128.11 (£94.01 a month)£1,135.11 (£94.59 a month)£1,135.11 (£94.59 a month)£1,135.11 (£94.59 a month)
Fixed/variableFixed for 1 yearFixed for 1 yearVariableFixed for 2 yearsFixed for 1 year
Renewable tariff?Yes – 100% renewable electricity Yes – 100% renewable electricity; gas fully carbon offset Yes – 100% renewable electricityYes – 100% renewable electricityYes – 100% renewable electricity
Exit feesNoneNoneNoneNoneNone

Notes: Estimated monthly gas and electricity cost for a medium user (2,900kWh of electricity per year and 12,000kWh of gas) in London paying by monthly direct debit. Quotes are from E.ON Next. Correct as of 20 July 2021. 

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E.ON (2021) review: Range of tariffs

E.ON has a compact range of six tariffs so you can find one to suit you without being bamboozled by choice. As well as the tariffs above, it also offers Next Drive for drivers of electric vehicles, which gives you cheaper electricity at night for charging your car.

You can also get your energy from E.ON if you have a prepayment meter, but you’ll need to phone to get a quote.

E.ON (2021) review: Customer satisfaction and complaints

In our survey, E.ON customers were not overwhelmingly happy with its customer support as just 58% said they were Satisfied or Very Satisfied. This compares with an impressive 92% for the award winner in this category and the overall winner, Octopus Energy.

It wasn’t the worst of the suppliers we rated for customer support, however, as British Gas had just 56% Satisfied or Very Satisfied.

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Value for money

E.ON had the lowest rating for value for money in our survey. Here, only 44% of its customers said they were Satisfied or Very Satisfied, in stark contrast to Octopus’s 91% and Avro Energy’s 89%.

Accuracy and clarity of bills 

The supplier fared better for its bills, as 73% said they were Satisfied or Very Satisfied with how easy they are to understand and 74% said they were Satisfied or Very Satisfied with their accuracy.

Smart meters

Energy suppliers have been fitting smart meters in people’s homes since 2016 and E.ON had the most customers with a smart meter, making it the award winner in this category. In our survey, 55% of E.ON’s customers said they had a smart meter, although some of these may have been fitted by their previous suppliers.

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Complaints

E.ON was the worst of the traditional big suppliers in our survey for the number of complaints it received per 100,000 customer accounts, according to the most recent data from the energy regulator Ofgem for the first three months of 2021, at 1,956. The best supplier in our survey, Avro, received just 235 per 100,000.

Its record for resolving them is more respectable, however, with 61% of customer complaints resolved by the end of the next working day and 90% within eight weeks. This is still a way behind Avro, however, which resolved 87% by the next day and 98% within eight weeks.

Ofgem complaints data

Complaints per 100,000 customer accountsIndustry average complaints per 100,000 customer accountsComplaints resolved by end of next working dayComplaints resolved within eight weeks
1,9561,62961%90%

Notes: Data is for the first three months of 2021.

E.ON (2021) review: Verdict

E.ON wasn’t one of the most highly rated suppliers in our survey of energy customers and was only victorious in the fitting smart meters category of the Expert Reviews Energy Awards 2021. And while a respectable proportion of 68% of its customers said they would recommend it to others, this is still far below the 96% achieved by the top provider Octopus Energy.

Regardless, E.ON was still rated reasonably well by its customers in our survey and has a good record for generating and supplying renewable electricity. E.ON Next’s tariffs are also very easy to understand. However, since it didn’t come off so well in the customer support or value for money sections of our survey, you would probably get a better service and cheaper energy elsewhere.

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