Ovo to be bought by E.On: what this means for Ovo customers

Ovo Energy will be bought be energy company E.On after the competition watchdog gave the sale the go-ahead. 

If you're an Ovo customer, don't panic: your gas and electricity supply will continue as usual. Keep reading to find out what we know so far about what will change, when and what you should do.

The multimillion-pound deal will make E.On Britain's largest energy supplier by customer accounts, with around 9.6m. 

Ovo customers won't see any immediate changes until the sale is completed, expected to be by the end of the year. Until then, Ovo will operate independently. 

Customers of E.On Next, the residential arm of the E.On group, will also continue to see business as usual.

You don't need to do anything, and you can still switch suppliers if you wish.

Find out whether Ovo Energy and E.On Next are among the best energy suppliers for 2026.

Ovo Energy customers: what you need to know now

Nothing is changing for Ovo customers until the sale is complete so you don't need to do anything.

Your gas and electricity supply won't be affected, nor will your direct debit payments or account balance.

Your tariff will stay the same throughout the takeover. If you've fixed a tariff it won't change for the length of your contract.

You can still contact Ovo Energy in the same way as you do now, and you'll be supported by the same Ovo staff.

If you're eligible, you'll still get the Warm Home Discount.

Ovo said in a message to its customers: 'We'll let you know well in advance if anything is going to change'.

Last month Ovo sold its Home Services business (including Corgi Homeplan and Homeheat), which provides boiler servicing and insurance, to Hometree. It confirmed that customers' contracts and prices will be honoured with no changes.

The future of E.On Next and Ovo Energy

When the sale was first announced, E.On UK chief executive Chris Norbury said that 'this deal is about customers [being] in control and new energy that works for everyone'.

E.On wants to make the energy system more 'customer-led'. It offers its customers:

• Time-of-use tariffs that reward customers for shifting energy use to cheaper, off-peak periods
• Home batteries and EV charging
• Integrated energy solutions designed to reduce bills over the long term. 

It added: 'It is about building a retailer with the capability, the technology and the customer base. [...] We chose Ovo because it’s a modern, digitally native business with great people and a shared belief that innovation is what can make energy affordable and sustainable for everyone.'

Find out more about time-of-use tariffs, home batteries and home EV charging.

What happened to Ovo Energy?

Ovo Energy was set up in 2009 to disrupt the energy market. It grew rapidly into one of the biggest and most established energy providers in Great Britain. 

It bought SSE's retail business in 2020.

It had a market share of 11.7% for electricity and 9.8% for gas in April 2026, according to energy regulator Ofgem, making it the fourth-biggest supplier.

But Ovo made a loss in 2024 and struggled to meet some of Ofgem's financial resilience rules.

If you are a current Ovo customer, your energy supply will continue as normal and existing tariffs will be honoured in full. 

Energy bills are rising for those who haven't fixed their energy deal. For those on out-of-contract variable tariffs, the price cap rose in October and is expected to rise again in January. 

To see what options are available for fixing a tariff, head to our table of the latest cheapest deals in our guide to how to get the best energy deal, plus try our 10 ways to save on energy bills.