The UK's leading green energy comparison site

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Green power from trusted 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.