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Our green energy

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

Green electricity

Our electricity is 100% green – made from the sun, the wind and the sea. We generate about 20% of it ourselves and the rest is certified green energy we buy from other green generators or via the wholesale market.

What really makes Ecotricity different from other energy companies, including the ‘green’ ones, is that we turn our customers’ bills into new sources of green energy. We’re building new wind and sun parks across the country, so we’re increasing the amount of renewables in Britain rather than just trading what already exists. 

Plus we’re always researching and developing newer, bigger and more efficient ways of generating green electricity. Our goal is to completely replace electricity made by burning fossil fuels.

Explore our energy parks
At Ecotricity we generate sustainable green energy at our own sun and wind parks and supply it to homes and businesses across Britain.

Green energy from the wind

We’ve been generating 100% green electricity from wind energy since 1995.

Britain has 40% of Europe’s wind source and it won’t ever run out – it’s an incredible natural resource and there’s enough of it to power the country several times over.

Our windmills

Over the past 25 years we’ve built 24 wind parks all over the country. These wind parks are home to 74 beautiful windmills, generating enough green energy to power over 56,000 homes.

The environmental benefit of our windmills is huge, saving over 34,000 tonnes of CO2 each year in the fight against the climate crisis.

The wind blows day and night, so we’re currently building our first grid scale battery project, designed to store green energy generated when demand is low, for use at peak times. Innovations like this are essential in our mission to end fossil fuels.

Turning wind into electricity

All our windmills create electricity in the same way, even in a gentle breeze. The wind turns the blades, which are connected to a spinning shaft in the body of the windmill.

A generator converts this motion into electricity, which is passed through a transformer to bring the voltage up so it can be used nearby or sent to the National Grid.

Green energy from the sun

It may be hard to believe sometimes but Britain gets plenty of sun, more than enough for solar energy to contribute significantly to our national electricity supply.

Our sunmills

Our first sun park was 1MW in size, occupying almost five acres of land with over 5,000 solar panels joined together. A sun park like this generates enough green electricity to power about 250 homes.

We’re currently building two new solar parks using the latest panel technology, a total of nearly 20MW which will be powering up in spring 2022. They’ll be next door to two of our existing wind parks in Leicestershire and Devon, sharing the same connection to the national grid, which is a really efficient way of doing things.

Turning sunlight into electricity

Whatever the weather, solar energy is generated when photons from the sun create a flow of electricity in the solar panel, which is why you’ll sometimes see them referred to as photovoltaic panels.

The technology has come on in leaps and bounds – the newest panels generate 500 watts compared to around half that 10 years ago. Another exciting development is bifacial solar panels, which we’ll be using in our new solar parks.

Bifacial panels make electricity from the underside as well as the top face, from light reflected off the ground – overall, they generate around 7 to 10% more electricity than conventional panels.

A wind turbine, or windmill, is used to turn the wind’s kinetic energy into renewable electricity.
Solar panels don’t need direct sunlight to work – they can absorb daylight, even on a cloudy day.

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Our founder Dale Vince shares his thoughts on the green revolution

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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.
Ecotricity is a sponsor of the Glasgow Climate Clock that will run every night until COP26.