Ecotricity logotype 0345 555 7100
/Our green energy/Why us?

Our green energy

We don’t just supply green energy, we make it too
Our green energy

Ecotricity vs the rest

Why should you choose Ecotricity instead of another energy supplier?

It’s a good question. Ever since we delivered 100% renewable electricity to our first customer in 1996, we’ve been proud to be Britain’s greenest energy company.

Almost 30 years on, there are a lot of energy companies out there who claim to offer green energy. But do their claims hold water? Who’s telling the truth and who’s greenwashing? And how can you tell?

Here’s why we think you should switch to Ecotricity:

We’re a Which? Eco Provider

We’re proud that we’re a Which? Eco Provider for energy. The Which? Eco Provider endorsement is given to energy suppliers who make the greatest positive impact in generating renewable electricity, building new sources of green energy and helping the transition away from fossil fuels.

We’ve been a Which? Eco Provider for five years – which is a fantastic achievement!

which 5 thumb 2

We’re ranked number one for our customer service!

We were thrilled to be ranked as the top energy supplier for customer service for July - September 2025 by Citizens Advice.

Citizens Advice is one of the most trusted, independent consumer organisations. They compare customer service performance from large energy companies four times a year, creating a star rating to help people cut through the marketing claims. Find out more here.

Vegan energy

Ecotricity is the only energy company in the world certified as vegan by both The Vegan Society and Viva!, the vegan charity.

As you’d expect, vegan energy is produced without involving animals. Renewable electricity from solar, wind and geothermal is therefore vegan.

Gas is more complicated. Several big energy suppliers use by-products from livestock farming in anaerobic digestion vats to produce biomethane, which is then delivered as household gas or burned to create electricity.

They call it ‘green gas’, but livestock farming is one of the biggest contributors to carbon emissions in the UK and around the world. Energy companies who use animals to make energy are supporting the factory farming industry, which is a huge problem for the climate.

Bills into Mills

Ecotricity is a not-for-dividend company. We put every penny towards building new sources of green energy and innovative green projects that help build a greener Britain. You can help us make a real difference in the fight against the climate crisis

why us page which eco provider 2025
5 reasons vegan (1)

The facts speak for themselves.

We’re proud to have been named a Which? Eco Provider.

We’ve built 24 wind parks all over the country, which are home to 74 beautiful windmills, as well as sun parks utilising the latest bifacial panels. And we’re always planning more, as fast as possible.

We’re the only energy company in the world certified as vegan and our green gasmills will soon be busy making sustainable gas from grass.

When you’re with us, every penny of your bill makes a difference in building new forms of green energy. You’ll help us make fossil fuels a thing of the past.

Switch to Ecotricity today and we’ll turn your bills into mills.

The more people who join us, the more we can do to end fossil fuels
Manifesto book with long shadow

Get the book!

Manifesto out now

Shop
Dale Vince portrait with bandana

DaleVince.com

Our founder Dale Vince shares his thoughts on the green revolution

Explore the site

Don't just take our word for it...

Ecotricity is recommended by
Good Shopping Guide - Ethical Best Buy logo
  • Our story
  • Our mission
  • Our manifesto
  • Our history
  • Ecotricity innovation
  • Walking the talk
  • Our partners
  • Green news
Ecotricity logotype

Climate Clock

The Climate Clock is a version of the Doomsday clock that has been running since 1947 - this tracks the risk of global man-made disaster, through man made technology (like nuclear weapons) - displaying the minutes and seconds left before midnight, when disaster strikes. The climate crisis is a small part of the calculations made.The climate clock uses a similar approach, but, focuses only on the climate crisis - which is the biggest and most urgent existential threat we face."The Climate Clock is a countdown to the biggest man-made disaster we face - but also a measure by which we can track our progress - moving from fossil to renewable energy. It shows we have no time to lose - the clock is ticking…" Dale Vince, OBE.