Where Does the UK’s Energy Come From?

The energy system in the United Kingdom is rapidly evolving as the country moves towards a low-carbon future. Driven by climate targets and the need for energy security, the UK is transforming how electricity is generated, with renewables now playing a central role in the national energy mix.

Today, electricity in the UK comes from a combination of renewable energy, nuclear power, and remaining fossil fuels. Renewable energy sources, especially wind, solar, hydro, and biomass, have grown significantly in recent years. In 2025, renewables generated around 63% of the UK’s electricity on average, marking a major milestone in the transition away from oil and gas dependency.

The shift from oil and gas is most visible in electricity generation, where coal has already been largely phased out, and natural gas is gradually being reduced. However, oil and gas still play an important role in heating, transport, and as backup electricity during periods of high demand or low renewable output. Despite this, the long-term direction is clear: the UK is steadily reducing fossil fuel reliance in favour of cleaner energy systems.

Renewable energy is central to this transition. Wind power, particularly offshore wind, now leads UK electricity generation, supported by expanding solar capacity and existing hydropower. These technologies produce electricity without burning fossil fuels, significantly reducing greenhouse gas emissions.

However, because wind and solar are weather-dependent, the UK energy system requires flexible backup sources to maintain stability. Bioenergy, like what Evero generates, plays a unique role in this system. Some forms of bioenergy are dispatchable, generating electricity whenever it is needed, and helping to balance the grid. Bioenergy provided 6.9% of the UK’s electricity in 2025.

Nuclear energy also provides reliable, low-carbon electricity that runs continuously regardless of weather, helping to stabilise the UK grid alongside flexible sources like bioenergy and balancing renewable variability.

Overall, the UK energy mix is becoming cleaner, more diverse, and increasingly independent from oil and gas. With continued investment in renewables, grid infrastructure, and energy storage, the UK is positioning itself for a resilient, low-carbon energy future built around sustainable electricity generation.