E.ON Business Energy Profile: Tariffs & Reviews

E.ON is the second largest energy supplier in the United Kingdom and a member of the coveted big 6 energy suppliers. They have approximately 3.8 million customers in total and serve at least 100,000 small, medium and large businesses. 

The company was founded in 1989 as Powergen, which eventually became E.ON in the United Kingdom in 2004. The rebrand came about to bring it inline with E.ON Group. The rebrand was a complete success and few people today remember Powergen, with ‘E.ON’ the name synonymous with energy supply today. 

E.ON is a big investor in renewable energy – they have invested £2.5 billion into renewable projects in the United Kingdom in the last decade, and they operate more than 20 wind farms that produce enough electricity to power 60,000 small and medium-sized businesses. They also offer 100% renewable business electricity. 

Key features:

  • 100% renewable electricity for small businesses
  • Fixed tariffs for 1, 2, 3 or 4 years
  • Variable tariffs also available 
  • Smart meters and half hourly meters 
  • Business energy products for SMEs and large businesses

E.ON Core Services

E.ON’s core services are gas and electricity supply for small and medium-sized businesses, but they also offer energy solutions for larger businesses with products for manufacturers, warehouses and other high energy organisations.  

They also offer:

  • Building and energy management solutions
  • Infrastructure setup and management 
  • Electric vehicle charging solutions 
  • District heating solutions
  • Energy storage and optimisation solutions

All micro, small and medium-sized businesses are offered a smart meter as part of their energy plan, or you can choose a different meter, such as half-hourly. New connections are no problem if you are moving into new premises. 

The best way to buy energy with E.ON is with EnergyBillKill – our business energy deals are up to 20% cheaper than going to E.ON direct.


E.ON Business Gas and Electricity Tariffs & Rates

Fixed Business Electricity Plan

E.ON’s Fixed Business Electricity Plan can be fixed for 1, 2, 3 or 4 years. It’s suitable for small and medium-sized businesses. Fixing the price of your energy is a wise move if you think energy prices will rise over the next few years. 

100% Renewable Business Plan

E.ON’s 100% Renewable Business electricity plan is available to eligible micro and small businesses, with electricity sourced from E.ON’s renewable assets like wind farms, as well as the grid with renewable electricity certificates. 

Variable Business Electricity Plan

E.ON’s Variable Electricity Plan is a 30-day rolling contract energy plan with no exit fees when you switch to a fixed price plan with E.ON in the future. If you have short-term energy needs, this will be the best option for your business. 

E.ON Deemed Rates 

E.ON’s deemed rates are dependent on location. You will be moved onto deemed rates either if your contract expires and you do not renew or cancel it, or if you move into new premises and there is an existing E.ON supply. If you find yourself on deemed rates, be sure to switch soon because prices are higher than contracted rates. 

  • You can find E.ON’s electricity deemed rates for SMEs here
  • You can find E.ON’s gas deemed rates for SMEs here
  • You can find E.ON’s maximum demand deemed rates for half hourly meters here

Links to further E.ON deemed rates for businesses can be found here. We recommend you bookmark this page because it’s updated routinely. 

E.ON Fuel Mix

E.ON has two fuel mixes which apply depending on the size of your business. 

For small businesses, E.ON’s fuel mix as of 27.05.2020 was:

  • Coal – 7.1%
  • Gas – 48.3%
  • Nuclear – 14.5% 
  • Renewable – 27%
  • Other – 3.1% 

And their environmental impact was as follows:

  • CO2 emissions – 261g per kWh
  • Radioactive waste – 0.0001g per kWh

For corporate, medium and large businesses, E.ON’s fuel mix as of 27.05.2020 was:

  • Coal – 7.5%
  • Gas – 51.1%
  • Nuclear – 15.3% 
  • Renewable – 22.9% 
  • Other – 3.2%

And their environmental impact was as follows:

  • CO2 emissions – 251g per kWh
  • Radioactive waste – 0.0001g per kWh

E.ON also offer 100% renewable electricity to eligible small businesses. These tariffs combine electricity generated from E.ON’s renewable assets with energy sourced from the grid, backed by renewable energy certificates. 

You can compare the fuel mixes of different energy suppliers here


Pros and Cons of Switching to E.ON


  • They’re a well-established company 
  • Ranked best for complaints handling by Citizens Advice 
  • You can fix your tariff for 1, 2, 3 or 4 years
  • Variable tariffs are on a 30-day rolling contract 
  • Small businesses can get 100% renewable electricity 
  • Free smart meters for micro and small businesses 
  • New connections are no problem 
  • Industry-leading half-hourly meter installation 
  • All corporate clients get a dedicated business account manager 


  • 100% renewable electricity is only for small businesses
  • Their fuel mix isn’t the cleanest 
  • Their prices are not always the cheapest 

Overall, we would say the pros of switching to E.ON outweigh the cons. They’re not always the cheapest supplier, but this could be said of any supplier. 

The only sticking point is their reliance on fossil fuels and nuclear for their electricity, however, if you are an eligible small business, you will qualify for 100% green electricity. 


E.ON Reviews

E.ON ranks average to good among customer reviews online. 

Here’s a breakdown of their ratings across different review platforms:

  • Trustpilot – they have a 3.7/5 star rating based on over 10,000 reviews
  • Review Centre – they have a 1.5/5 star rating based on over 300 reviews 

E.ON has also been compared to other suppliers for complaints handling:

  • Citizens Advice – E.ON was ranked 1st place in a table of 16 ranking non-domestic energy suppliers for complaints handling. 

How these ratings compare 

E.ON ranks favourably for customer reviews compared to other members of the big 6 and against some smaller energy suppliers

If we combine the 5-star rating systems of Trustpilot and Review Centre, E.ON comes out with a 5.2 out of 10 rating overall. This is better than Scottish Power, for example, who have a 2.3 out of 10 combined rating overall. 

In terms of complaints handling, E.ON was ranked by Citizens Advice as the best non-domestic energy company between October and December 2019 – ranking above Contract Natural Gas, SSE, EDF and Utility Warehouse. 


E.ON Contact Information & Tools 

E.ON phone numbers

  • Business customer Service – 0345 055 0065

*Open 9:00am to 5pm – Monday to Friday

  • Change of occupier team – 02476 193 334

*Open 8:00am to 5pm – Monday to Friday

  • Automated payment line – 0345 052 0000

*Open 24-hours a day, 7 days a week. 

  • Feed-in Tariff – 0345 301 4884

*Open 8:00am to 8pm – Monday to Friday

  • Complaints – 0345 301 4884

*Open 8:00am to 8pm – Monday to Friday

Note – Calls to 03 numbers cost no more than a national rate call to an 01 or 02 number.

E.ON Email Addresses

Making a complaint with E.ON 

Details about making a complaint can be found here

Further guidance for making a complaint can be found on Ofgem here

E.ON Customer Service Address

For general enquiries or if you wish to make a complaint in writing, write to:

Business Customer Service,
E.ON Energy Solutions Ltd,
PO Box 2010,

Managing Your E.ON Account 

When you become an E.ON business customer you will be asked to create an online account. My Account is an online dashboard that lets you submit a meter reading, pay a bill or cancel and renew your contract online. 

You can also manage your E.ON account using the E.ON app. It’s free to use and lets you do most of the things you can do online on your smartphone. 

Paying Your E.ON Bills 

You can pay your E.ON bill on the phone using a card by calling 0345 055 0065, or by bank transfer or card in My Account

The easiest way to pay your bills is to set up a Direct Debit. You can do this in the E.ON app or online. More information can be found here

E.ON Energy Guides 

E.ON has a dedicated news and insights page for business energy guides. Their guides cover everything from green energy to the future of energy supply. 

We have also published a guide to understanding E.ON energy bills here

E.ON Change of Tenancy Form

If you want to speak to someone at E.ON about a change of tenancy, E.ON’s dedicated change of tenancy team can be called on 02476 193 334.

The online form for moving out of your premises can be found here, and the online form for moving into new premises can be found here

That form is suitable for large business customers. If you are a small or medium-sized business, you can download and complete a change of tenancy form in My Account or call E.ON to fill in details over the phone. 


E.ON in the News 

E.ON to offer free central heating upgrade to eligible customers

Source: Hereford Times

May 2020: E.ON is working with Hereford Council to help homeowners upgrade their central heating to gas central heating for free. This could save customers up to £630 on their annual electricity bill, because gas is 2-4 times cheaper than electricity. 

E.ON switches domestic customers to 100% renewable electricity 

Source: This is Money

July 2019: E.ON has switched to 100% renewable electricity for all new and existing domestic customers. The electricity is sourced from E.ON’s wind farms and from the grid with renewable energy certificates. 

100% renewables-backed electricity offered to small business customers

Source: E.ON

E.ON has announced a 100% renewable energy plan for eligible small businesses. The electricity supply is backed by 100% renewable sources, giving small businesses a fantastic opportunity to slash their carbon footprint. 


Switching to E.ON  

Switching to E.ON is easy with EnergyBillKill – all you need is your business’s postcode, current supplier, usage in kWh and ideal billing period. We will then get the best prices for you so you can compare E.ON’s rates with other suppliers. 

We have special deals in place with E.ON and other energy suppliers, allowing us to offer energy deals that are as much as 20% cheaper than going direct. We will also initiate your switch for you, so you don’t have to do a thing. 

Get started with our easy-to-use web app or download our mobile app on Android or iOS. Using our free app, you can get the best prices on business electricity and gas in less than 60 seconds on your smartphone or tablet. 


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