Where does our energy come from?

To help you understand how the electricity we supply has been generated by fuel source, our fuel mix breakdown is shown below. We’ve compared it with the total fuel mix for the rest of the UK, and also shown a comparison between our green tariffs and all our other tariffs.

The fuel mix information details how the electricity we supply you with has been generated in the previous year from each fuel source - such as coal, natural gas, renewable and nuclear energy - and compares ScottishPower’s fuel mix with the total UK fuel mix.

Fuel Mix Information 2018 – 2019

  • (1) This is the mix of all the energy we buy to supply our entire customer base
  • (2) This is the fuel mix of total electricity supplied in the UK
  • (3) This is the fuel mix for all of our customers that are on green tariffs
  • (4) This is the fuel mix for all of our customers that are on non-green tariffs
ScottishPower Tariffs
Energy Source ScottishPower Total Fuel Mix (1) UK Fuel Mix (2) Green Tariffs (3) All other Tariffs (4)
Coal 5% 5% 0% 6%
Gas 52% 41% 0% 60%
Nuclear 11% 19% 0% 13%
Renewable 30% 33% 100% 18%
Other fuels 2% 2% 0% 3%
Total 100% 100% 100% 100%
Environmental Impact
CO 2 Emissions 251g per kWh 209g per kWh 0g per kWh 291g per kWh
High Level Radioactive Waste 0.0008g per kWh 0.007g per kWh 0g per kWh 0.0009g per kWh
For more information on the environmental impact of your electricity supply visit http://www.scottishpower.com

Fuel Mix Information

What is it for?

The information on our fuel sources and their environmental impact is designed to help you make an informed choice about your energy supplier. Similar information will be published by suppliers across Europe, in much the same way as emission levels are quoted for new cars.

What is a Green Tariff?

A ScottishPower green energy tariff means that all of the energy a customer buys are matched by purchases of renewable energy. All the renewable energy we sell through our green energy tariffs is sourced from wind farm generation and backed by green energy certificates known as Renewable Energy Guarantees of Origin (REGOs).

As of 28th January 2020, ScottishPower is offering a suite of new fixed tariffs for domestic consumers backed by 100% renewable electricity sourced directly from ScottishPower’s own wind farms across Great Britain. By choosing one of these new fixed tariffs, customers can support the generation of renewable electricity in Great Britain by opting for a green alternative to traditional fossil fuel generation and helping to reduce CO2 emissions from electricity usage. Based on the national average fuel mix for 2018/2019, a consumer with medium typical domestic annual consumption who does not opt for a green electricity tariff will produce CO2 emissions totalling 648kg. To find out more about government support for renewable energy supply please visit: www.energy-uk.org.uk/energy-industry/renewable-generation or to learn more about electricity is physically distributed please visit: www.energy-uk.org.uk/energy-industry/the-energy-market.

Will your fuel mix stay the same or change?

Our fuel mix will change each year depending on our generation portfolio and station production. We are the UK’s leading windfarm developer, so more energy will be supplied from renewable sources in future as further windfarms are built.