Each energy source has its advantages and disadvantages, and EDF Energy brings them together to ensure sustainable future for our UK customers. The UK is supplied by a variety of electricity generation sources – which we call the energy mix.

Low-carbon energy

At EDF Energy, our priority is to secure a stable energy supply from low-carbon sources for our customers. At the heart of our energy strategy is nuclear power.


Nuclear power is energy contained in atoms – released as heat from a chain reaction in a radioactive element such as uranium. Nuclear power stations use this heat to produce steam to drive turbines to generate electricity.


Hydropower is the renewable energy contained in flowing water. Electricity generated using hydropower is known as hydroelectricity and is generally considered to be reliable.


The movement of the sea can generate electricity in three ways: via tidal turbines, tidal barrages or wave power. Each of these technologies is in the early stages of development, and not yet deployed on a large scale.


Wind turbines can convert the wind’s kinetic energy into electricity – and as the windiest country in Europe, the UK is well placed to harness its power.



Sunlight is a renewable energy source. Solar thermal panels use sunlight to heat water for washing and heating, while solar photovoltaic (PV) panels convert sunlight into electricity.

Non-renewable energy


Coal is a fossil fuel formed from plants buried millions of years ago. The high-temperature, high-pressure conditions underground transformed the plants physically and chemically – creating coal.


Natural gas is a fossil fuel and thus a finite resource. Gas is formed when the prehistoric remains of animals and plants are buried and subjected to high temperatures and pressures for millions of years.

Related content

Our energy approach

We want to bring affordable and low-carbon energy to all. With our experience, we can help the UK move toward a more sustainable energy future.

Energy in the UK

The UK is facing a potential energy gap, so to ensure our electricity supply is not interrupted, we need to build new generating capacity.

Future energy

The UK’s electricity demand could exceed supply within the next decade, creating an energy gap. Find out how we plan to lead energy change to create a stable energy future.