The UK's leading green energy comparison site

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Compare the best green energy suppliers

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✓ 100% renewable electricity (switch your gas too)

✓ £270 average saving

✓ Greenwash-free suppliers

✓ Every switch backed by our customer service promise

Rated 'Excellent' on TrustPilot

“I have always wanted to change to a renewable energy company but was daunted by the process. Big Clean Switch made it very easy and answered all of my questions politely and patiently! The chat box helpline was fantastic and the same advisor helped me right up until I had switched.”
Brogan

The easy way to switch to green energy

Switching to green energy is one of the easiest and most impactful things you can do to reduce your carbon footprint. With Big Clean Switch’s free energy comparison service, you can compare deals from the UK’s best green energy suppliers and switch to a great value tariff in minutes. 

Real savings

Gone are the days when renewable energy was expensive. In fact, green energy tariffs are now competing with the cheapest deals on the market. We’re proud to have saved our customers over £270 on average by switching their gas and electricity with us. All while knowing that they’ve done their bit for the planet.

Verified green suppliers

There are lots of energy providers in the UK offering green energy, but they’re not all equally environmentally-friendly. We verify the claims of all the companies that we work with to ensure that they’re greenwash-free. You can read more about our selection criteria here.

How to switch to green energy

It couldn’t be easier to switch your home to renewable energy using our free and impartial service. Simply choose whether you need gas and/or electricity and provide a few details about your current provider. We’ll then show you the latest deals from our collection of the UK’s best green energy suppliers for you to compare.

Once you’ve chosen, we’ll handle the rest. Your new energy supplier will contact you to confirm the transfer date. There’s no need for engineers’ visits or any disruption to your supply. Plus, you’ll be backed by our Customer Service Guarantee so you can rest assured that we’re there to help in the unlikely event you have any issues.

What is green energy?

‘Green energy’ means power generated from the elements – sun, wind, water (rivers, tides or wave power) and biofuels (gas released by rotting food and agricultural waste). Unlike dirty electricity generated by burning fossil fuels (oil, coal and gas), green energy is renewable and has little impact in terms of climate change and air pollution.

There are lots of energy providers in the UK offering green energy, but they’re not all equally environmentally-friendly. We verify the claims of all the companies that we offer to ensure that they’re greenwash-free and provide 100% renewable energy.

How do green energy tariffs work?

Picture the National Grid like a bucket full of water.* When you’re on a renewable tariff, your supplier promises to match the amount you take out of the bucket by putting the same amount of clean water in. The more clean water that goes into the bucket (and the less dirty water), the cleaner the bucket, and therefore the Grid, gets.
 

Just like with traditional energy, green tariffs use electricity from the National Grid, so even if the sun isn’t shining and the wind isn’t blowing, you will still have reliable power for your home.

Our energy suppliers

From new kids on the block to one of the UK's biggest suppliers. Low cost power with a customer service score to die for.

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The first major British supplier to be co-operatively owned, Co-op Energy give a share of their profits back to members and local communities.

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The world’s first green energy company. Offering 100% renewable electricity from the wind and sun and carbon neutralised gas.

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Green power and excellent customer service make GoTo a great choice, particularly for higher energy users.

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Clean electricity from one of the UK's largest investors in solar power, with a commitment to 'simpler pricing and bills that actually make sense'.

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The only Community Interest Company energy supplier in the UK, People’s Energy puts people and the planet before profits.

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The 2018 MoneyFacts Energy Provider of Year, So Energy have a commitment to low prices and great service.

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Switching is quick and easy

Less than 5 minutes

No supply disruption

No admin

No engineer visits