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Fuel mix

See the mix of fuels we've used to generate electricity

For residential customers, as of 9 July 2019, all of your electricity is matched from a renewable source such as wind, biomass and solar. Every unit of electricity you use is backed by 100% renewable electricity from our renewable assets, the power we buy from independent wind power generators in the UK, and from renewable energy certificates.

Since 2009 we’ve invested more than £3.3bn in UK renewables and helped the industry reach a place where environmentally friendly power sources can outperform fossil generators. We’re now using that expertise to help our customers make changes at small scale in their homes.

Fuel Mix Disclosure Reporting

 As required by the Electricity (Fuel Mix Disclosure) Regulations 2005, the three tables below give a breakdown of our fuel mix – the fuels we use to produce electricity for all our Residential, Small Business and Corporate customers. Figures are for the period 1 April 2018 to 31 March 2019. 

Electricity source

Fuel mix (%)

 Fuel mix

Coal

Gas

Nuclear 

Renewable

Other 

Total 

 Domestic and Small Business Customers (E.ON Energy Solutions Limited)

 7.1 

 48.3

 14.5

 27.0

3.1

100

 Corporate Customers (E.ON UK PLC)

7.5

51.1

15.3

22.9

3.2

100

 E.ON UK Overall Average

7.3

49.5

 14.9

25.2

3.1

100

UK Average

5.2

41.4

18.7

32.8

1.9

100

 

Environmental impact

Carbon Dioxide Emissions (g/kWh)

Carbon Dioxide Emissions (g/kWh)

Coal

Gas

Nuclear 

Renewable

Other 

Total 

 Domestic and Small Business Customers (E.ON Energy Solutions Limited)

65 

169

 0

  0

27

261

 Corporate Customers (E.ON UK PLC)

69

178

 0

 0

28

275

 E.ON UK Overall Average

67

173

 0

 0

27

267

 

High Level Radioactive Waste (g/kWh)

High Level Radioactive Waste (g/kWh)

Coal

Gas

Nuclear 

Renewable

Other 

Total 

 Domestic and Small Business Customers (E.ON Energy Solutions Limited)

0.000

0.000

 0.001

 0.000

0.000

 0.001

 Corporate Customers (E.ON UK PLC)

 0.000

0.000

  0.001

0.000

0.000

 0.001

 E.ON UK Overall Average

0.000

0.000

  0.001

0.000

0.000

 0.001

 

 

Renewable tariffs

The following tariffs are backed by Renewable Electricity Guarantees of Origin (REGOs) or EU Guarantees of Origin (GoOs):
• Standard Renewable Energy Guarantees of Origin (REGO) backed supply
• Standard Renewable Energy Guarantees of Origin (REGO) Wind backed supply
• All Clean Energy Fixed tariffs
• All tariffs where you have chosen the option of a Clean Bolt on
• All SME REGO tariffs
• E.ON Fixed 1 Year Electric Vehicle
• Fix and Drive
• Fixed 1 Year Summer Saver

In addition to the tariffs listed above, we may launch further tariffs that are backed by REGOs over the course of the year. For more information on the REGO scheme, visit the OFGEM website. For customers who chose these tariffs, the following fuel mix applies. Figures are for the period 1 April 2018 to 31 March 2019.

Electricity source

Fuel mix (%)

 Fuel mix %

Coal

Gas

Nuclear 

Renewable

Other 

Total 

 Renewable Tariffs

 0.0

 0.0

 0.0

100.0

0.0

100.0

 

Environmental impact

Carbon Dioxide Emissions (g/kWh)

 Carbon Dioxide Emissions (g/kWh)

Coal

Gas

Nuclear 

Renewable

Other 

Total

 Renewable Tariffs

 0.0

 0.0

 0.0

0.0

0.0

0.0

 

High Level Radioactive Waste (g/kWh)

 
High Level Radioactive Waste (g/kWh)

Coal

Gas

Nuclear 

Renewable

Other 

Total

 Renewable Tariffs

 0.0

 0.0

 0.0

0.0

0.0

0.0

 

 

Other tariffs

For customers who did not choose tariffs which are backed by REGOs or GoOs, the following fuel mix applies. Figures are for the period 1 April 2018 to 31 March 2019.

Electricity source

Fuel mix (%)

 Fuel mix

Coal

Gas

Nuclear 

Renewable

Other 

Total 

 Domestic and Small Business Customers (E.ON Energy Solutions Limited)

 7.2 

 48.6

 14.6

 26.6

3.0

100

 Corporate Customers (E.ON UK PLC)

8.9

60.3

18.1

8.9

3.8

100

 Other Tariffs (E.ON UK Overall Average)

7.8

53.2

 16.0

19.6

3.4

100

Environmental impact

Carbon Dioxide Emissions (g/kWh)

 Carbon Dioxide Emissions (g/kWh)

Coal

Gas

Nuclear 

Renewable

Other 

Total 

 Domestic and Small Business Customers (E.ON Energy Solutions Limited)

 66

 170

 0

 0

26

262

 Corporate Customers (E.ON UK PLC)

82

210

0

0

33

325

 Other Tariffs (E.ON UK Overall Average)

72

186

 0

0

30

287

 

High Level Radioactive Waste (g/kWh)

 High Level Radioactive Waste (g/kWh)

Coal

Gas

Nuclear 

Renewable

Other 

Total 

 Domestic and Small Business Customers (E.ON Energy Solutions Limited)

 0.000 

  0.000 

  0.001 

 0.000 

 0.000 

 0.001 

 Corporate Customers (E.ON UK PLC)

 0.000 

 0.000 

 0.001 

 0.000 

 0.000 

 0.001 

 Other Tariffs (E.ON UK Overall Average)

 0.000 

 0.000 

  0.001 

 0.000 

 0.000 

 0.001 

 

More information

What is renewable energy?

Renewable energy is energy that occurs naturally and continuously in the environment and is naturally replenished.

The different types of renewable energy are:

Wind 
Solar (sun) 
Biomass (organic matter such as plants) 
Wave and tidal (sea) 
Hydroelectric (flowing water in rivers) 
Geothermal (energy stored within the earth)

Why have you put these figures on your literature and website?

There is a requirement for all licensed electricity suppliers to provide information about the energy sources that have been used to generate the electricity we supply.

Are we running out of natural resources?

The earth’s natural resources will run out if we carry on using them continuously as we do at the moment. This is why E.ON invests in renewable energy and promotes fuel efficiency.

What do these figures relate to?

The E.ON Energy Solutions Limited figures show the mix of electricity used to supply the power to our residential and small business customers.

The E.ON UK PLC figures show the mix of electricity used to supply the power to our industrial & commercial customers.

The E.ON UK overall figures show the mix of electricity used to supply power to all of our customers, including residential, small business and industrial and commercial customers.

The UK average figures show the mix of electricity used by all licensed suppliers to all of their customers.

Have any targets been set by the Government?

The Government has set long-term targets for greenhouse gas emissions, including a 60% reduction in carbon dioxide emissions by 2050.
It also has targets in terms of the amount of renewable generation which should be built each year. The target for this year is 10% of electricity to be generated from renewables.


What have E.ON done about making their fuel mix more sustainable?

- invested in more efficient forms of electricity generation
- upgraded many of our stations and closed older coal plants
- started work, with partners, on building the London Array, the world’s largest offshore wind farm
- almost completed work on the Isle of Grain gas-fired CHP, which is one of the world’s most efficient power stations
- become the first company to test a Pelamis P2 wave power device in UK waters
- invested heavily in green generation.
- We’re also currently involved with research into more advanced methods to reduce carbon emissions.