Girl on bike

Let’s get moving! £50 for Sustrans when you sign up for renewable energy with Tonik.

We are proud to be the energy partner for Sustrans, helping people switch to green energy that leads to cleaner air - and better overall health - for everyone. Not only that, but we’re donating £50 to Sustrans for each and every person who switches their energy supply to us. Either start your quote below or give us a ring and mention Sustrans.

Sustrans people on bikes

Sustrans is the charity making it easier for people to walk and cycle. They are custodians of the National Cycle Network. A UK-wide network of signed paths and routes for walking, cycling and exploring outdoors. It connects people and places across the UK and provides traffic-free spaces for everyone to enjoy.

Sustrans logo

Sustrans works with volunteers, partners, and supporters to care for the National Cycle Network and encourage active travel choices (walking, cycling and scooting) for the school run and commute. They work with local authorities, policy-makers and communities to make walking and cycling a more attractive choice and to create healthier places that benefit us all.

*£25 donation per fuel when the supply goes live

A journey towards clean air: sign up to our renewable energy and help save the planet.

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Ready to sign up to the renewable revolution?

It's easy - we’ll take care of everything with your old energy supplier. Once you’re on supply with us, you’ve got the power to go even greener with our suite of products - including solar panels, home batteries and EV chargers - designed to reduce your reliance on the grid, save money and help the planet even further. Welcome to the future of energy.

Here’s how it pays to join Tonik...

When you switch your energy supply to Tonik, our award-winning customer service and sustainably priced green energy come as standard, but there’s more – we reward our members for each step they take to help rid our skies of dirty, fossil fuel emissions.

Switch to green energy with us and we'll donate £50 as thanks!

Refer your friends. You get £25 off your bill. They get £25 too.

Take a (much cleaner) deep breath. You’re a renewable hero now.

Switch to green energy in just two minutes


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Choose your renewable energy tariff and then we'll take a few quick details.


Leave the rest to us

Sit back. Relax. Feel good about the good you've done for the planet.

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