Tomato Energy

Tomato Energy was a small independent energy supplier with a focus on helping homes and businesses reach Net Zero, including through Tomatopia, a scheme offering solar panels with no upfront cost.

Tomato Energy stopped trading on 5 November 2025. Ofgem appointed British Gas as Supplier of Last Resort, and its customers were moved to British Gas on 9 November 2025. If you were a Tomato Energy customer, this page explains what happened and who to contact.

Tomato Energy went bust in November 2025, and its customers are now with British Gas. Around 15,000 households and 8,000 businesses were moved across. Credit balances were protected, and you can switch away from British Gas without an exit fee.

Tomato Energy at a Glance

Jump to a section:Contact detailsWhat happened?What should I do?FAQs

Tomato Energy contact details

Tomato Energy's phone line and email addresses are no longer in use. Former customers should contact British Gas.

For more on British Gas, including its tariffs and customer reviews, see our British Gas review.

What happened to Tomato Energy?

Tomato Energy stopped trading on 5 November 2025. To protect its customers, Ofgem appointed British Gas as Supplier of Last Resort, and British Gas began supplying Tomato's customers on 9 November 2025. There was no interruption to anyone's gas or electricity.

Around 15,000 household customers and 8,000 business customers were affected. Tomato was one of more than 30 energy suppliers to have collapsed since 2021. See our full list of energy suppliers that have gone bust.

Household customers were moved onto a British Gas tariff equivalent to its standard variable tariff, which is covered by the Ofgem price cap.

I was a Tomato Energy customer. What should I do?

1. Make sure your British Gas account is set up. If you haven't already, give British Gas your meter readings and set up your online account.
2. Keep your Direct Debit. Direct Debits moved to British Gas automatically, so don't cancel them.
3. Check your credit balance. Any credit left on your Tomato account after your final bill is moved to British Gas and appears on your first British Gas bill. You can ask for a refund.
4. Sort your solar export payments. Solar export tariffs didn't transfer automatically, so if you had solar panels you'll need to set up a new export arrangement.
5. Compare deals. You're free to switch away from British Gas without an exit fee, so check whether a cheaper deal is available.

Your money is protected. When a supplier fails, domestic credit balances are protected by Ofgem and carried over to the new supplier. See our guide on what to do if your energy supplier goes bust.

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What was Tomato Energy's fuel mix?

Tomato Energy bought all of its electricity from the wholesale market, which gave it what is known as a residual fuel mix. Unlike some suppliers, it chose not to buy Renewable Energy Guarantee of Origin (REGO) certificates to label its electricity as 100% renewable, arguing that they did little for a greener grid. Instead, it focused on helping customers generate their own renewable energy through Tomatopia.

Tomato Energy's Fuel Mix Disclosure for 1 April 2023 to 31 March 2024 was as follows:

Tomato Energy FAQs

Has Tomato Energy gone bust?

Yes. Tomato Energy stopped trading on 5 November 2025, and its customers were moved to British Gas on 9 November 2025.

Who took over Tomato Energy customers?

British Gas, which Ofgem appointed as Supplier of Last Resort. It took on around 15,000 household and 8,000 business customers.

What happened to my Tomato Energy credit?

Credit balances were protected and moved to your new British Gas account, appearing on your first British Gas bill. If it's missing, contact British Gas on 0800 015 2216.

Can I switch away from British Gas?

Yes. As a Supplier of Last Resort customer, you can switch to another supplier without paying an exit fee. Compare deals to see if you could pay less.

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Last updated: 29 September 2026. Switches typically complete within five working days, and there's no interruption to your supply.