Our energy
Here’s where our 100% renewable electricity comes from.
Our fuel mix
100% renewable
All our tariffs are matched with 100% renewable electricity bought directly from 3,000 British generators. We achieve a real-time match between generation and demand a 88% of the time – a higher match than any other UK supplier*.
0g CO2 / kWh
Our 100% renewable fuel mix
- 47% = Wind
- 32% = Biogeneration
- 12% = Solar
- 9% = Hydro
*Fuel mix disclosure period April 2024-March 2025. 0g CO2 refers to generator emissions in the operational phase.
All energy suppliers are required to provide information on their fuel mix. To check another supplier’s fuel mix, go to their website.
47% Wind
The powerhouse of our mix. We buy from both offshore and onshore wind farms across Britain.
12% Solar
When it’s not rainy or windy, it’s often sunny. We buy from large solar farms, household arrays, and everything in between.
32% Anaerobic digestion
A brilliant baseload of renewable power – and a great way to capture harmful gases from waste.
9% Hydro
Another strong baseload – particularly when it rains, as it often does here in Britain.
Our green gas
10% of the gas we provide is renewable biogas.
We offset the rest of your gas emissions by investing in Gold Standard projects around the world that bring positive environmental, health and social impacts.
For comparison
UK average fuel mix
- 33.3% = Gas
- 42.1% = Renewables
- 16.2% = Nuclear
- 5.9% = Coal
- 2.5% = Other
*Fuel mix disclosure period April 2024-March 2025. Data source: DESNZ Fuel Mix Disclosure Data Table.
42.1% Renewables
The future of Britain’s energy mix – and the kind of energy our customers are helping to grow.
33.3% Gas
Gas power stations release large amounts of carbon emissions, making them one of the biggest contributors to climate change in the grid.
16.2% Nuclear
Low-carbon, but not renewable. Nuclear power stations are expensive to build, slow to expand and inflexible alongside renewables.
6% Coal
Although the UK no longer generates electricity from coal, it imports some of its supplied electricity from Europe via interconnectors – where coal-powered generation is still a high percentage of the fuel mix.
Our network
3,300 independent British producers
Every unit of our 100% renewable electricity is backed by our incredible community of independent producers – generating power in ways that work with nature, not against it.
Our proof
#1 on the Matched Clean Power Index
The Matched Clean Power Index independently ranks energy suppliers based on how closely they match their customers’ electricity use to renewable generation in real time, not just annually.
We rank first. That means when you use our electricity, it’s more likely to be genuinely green than if you were with any other major supplier.
Trusted by experts
The Uk’s only B Corp home energy supplier
The only UK energy company to receive Uswitch’s Green Accreditation 2026,
A Which? Eco Provider for 6 years running
Recommended energy supplier that cares for the planet
Trusted by people
“Today, I needed to arrange for an engineer visit. The phone was answered quickly and Claire who took the call was brilliant. It was quiet in the background, not a …”
“Contacted Good Energy helpline with a query about my Energy Monitor. A very helpful gentleman called McLean answered my call promptly and was able to suggest a couple of options …”
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Trustscore 4.8 | 14,715 reviews
How we’re challenging the industry
We’re pushing other suppliers to prove how renewable their electricity really is (or isn’t).
We created a framework, Good Green Supply, for suppliers and their customers to tell the difference between renewable claims and greenwashing.
We’re proving greener homes don’t have to be complicated.
Sunshine Place is our miniature village designed to show how renewable technology could work in everyday homes – and why government support is needed to make it accessible to more people.
We’re raising accessibility standards for all customers.
We became the first energy supplier accredited for digital accessibility – helping make online energy services easier to use through more inclusive design.
Our fuel mix explained
A supplier’s fuel mix shows the sources of the electricity that it supplies to its customers. For example, coal, gas, nuclear and renewables.
Over the course of a year, energy suppliers must buy enough electricity to feed into the national electricity grid to cover the amount their customers take out. At the end of each year, suppliers must disclose their fuel mix to the electricity and gas regulator, Ofgem. This information is published annually to help people make informed choices about their electricity supplier.
We buy renewable power direct from over 3,000 independent renewable generators.
We also source electricity from Westermost Rough Wind Farm, which is situated five miles off the Yorkshire Coast. We purchase 12% of its overall output, which is enough renewable electricity per year for more than 33,000 average homes.
Added together, the renewable electricity from all these sources matches the amount of electricity we supply to our home and business customers across the UK.
For more detailed information on how we source electricity, read the Environmental Benefits substantiation report below.
Between April 2024 and March 2025 (Our most recently published fuel mix) we achieved an unrivalled 88% match between our total customer demand and renewable generation produced within the same half hour, independently verified by the Matched Clean Power Index. Any gaps between generation and demand are matched over the course of a year.
This is important because electricity can’t be stored at scale – it needs to be used as it’s produced. To get Britain’s grid to 100% low carbon, we need renewable generation that reflects how people actually use power. That means generators spread across the country and across technologies.
*Electricity reaches you through the National Grid, which contains electricity generated from a mix of sources, including fossil fuels. We match all of the power you use at home with 100% renewable electricity sourced from our community of over 3,000 independent renewable generators.
Between April 2024 and March 2025 (Our most recently published fuel mix) we achieved an unrivalled 88% match between our total customer demand and renewable generation produced within the same half hour, independently verified by the Matched Clean Power Index. Any gaps between generation and demand are matched over the course of a year.
