Ovo Energy review: An unimpressive supplier

Ovo Energy has options for environmentally-minded customers, but is poor value for money and complaints are high
Written By
Updated on 5 November 2025
Ovo Energy on white background
Our rating
Pros
  • Fairly quick at resolving complaints
Cons
  • Above average complaint numbers
  • Other suppliers have clearer bills
  • Poorly rated website and app

Ovo Energy became one of Great Britain’s largest suppliers when it took over SSE’s home energy business in January 2020. It now has around four million customers with 12% of the home electricity market and 11% of the gas market.

It was launched in 2009 with the aim of making energy ‘cheaper, greener and simpler’. It’s planted five million trees in the UK since 2015 and is committed to being a net zero carbon business by 2035.

Customers who upgrade to Ovo’s Greener Electricity for £8 a month get 100% renewable electricity. For every customer with Greener Electricity, Ovo also contributes £40 a year to support new independent generators in the UK.

Ovo didn’t pick up any awards in our Expert Reviews Energy Awards 2025, coming second from bottom overall. 

In our survey, Ovo Energy had the fifth-lowest percentage of customers who said they were extremely likely to recommend it to others at 22% – way behind the overall winner Octopus Energy, which had 53% of its customers saying this. 

To find out how to get the best energy deal for you, visit our guide to the best energy suppliers.

As well as its standard variable tariff, Ovo Energy offers one and two-year fixed tariffs with the option to pay extra for its Green Electricity feature. Its Charge Anytime EV upgrade lets you charge your car for less than your standard electricity rate at any time of the day.

Ovo Energy came second from bottom for its value for money. Only 16% of its customers said they were very satisfied with Ovo’s value based on the price they pay and the service they receive, compared to 40% for the top provider: Utility Warehouse. Similarly, 16% of EDF Energy customers were very satisfied. And while E.ON Next had just 14% very satisfied, it had a much smaller proportion of customers saying they were either dissatisfied or very dissatisfied than Ovo, proving better overall.

Ovo Energy was one of the least trusted suppliers in our survey, with 23% of customers saying they completely trust it to act in their best interests. This compares to 30% for the winner in this category: Octopus. The worst provider, E.ON Next, had just 17% saying they completely trust it.

Ovo came bottom for complaint handling in our survey, with a dismal 13% of customers saying they were very satisfied with the way it handles complaints. This compares to 31% for the top supplier – Octopus – and 28% for the two highly commended suppliers in this category, British Gas and Utility Warehouse.

Ovo received an above average number of complaints, according to the latest data from the energy regulator Ofgem for the second quarter of 2025. It had 1,510 complaints per 100,000 customer accounts – the second-highest number of all the suppliers in our survey. Only Utility Warehouse received more than Ovo at 1,781.

It was fairly quick at resolving them though, with 74% resolved by the end of the next working day and 93% within eight weeks. British Gas only managed to resolve 48% of complaints by the end of the next working day.

Ofgem complaints data

Complaints per 100,000 customer accounts Industry average complaints per 100,000 customer accounts Complaints resolved by end of next working day Complaints resolved within eight weeks
1,510 1,052 74% 93%

Notes: Data is for the second quarter of 2025.

Ovo did pretty badly for the clarity of its bills, with only 20% of customers saying they strongly agree that their bills are clear and easy to understand compared to 40% for the award winner Utility Warehouse. Octopus was the highly commended supplier in this category with 30%.

Ovo Energy was the most poorly rated provider in our survey for its website and app. Just 28% of customers said its website was very easy to use. 

On top of this, 33% of customers said its app was very easy to use. E.ON Next had a lower percentage with 30% but, again, this was balanced out by a smaller proportion saying it was difficult or very difficult to use, resulting in a better overall score than Ovo in this category. 

Ovo Energy has options for anyone wanting to reduce their carbon footprint and resolves complaints fairly quickly. However, it was among the poorest performers across all aspects of our customer survey and received a higher number of complaints than the industry average. It also scored particularly poorly for its website and app.

You’re likely to be better off with Octopus Energy or Utility Warehouse in terms of overall service.

Written By

Cathy has been a journalist since 2001, starting her career writing about mortgages and property. Before going freelance in 2018 she worked at Which? for 12 years, first as a money writer then as an editor in the money, home, tech and cars teams. Her final role as technology editor saw her getting to grips with smart home technology and covering the latest tech from Las Vegas. Publications she has written for as a freelancer include Loveproperty.com, Lovemoney.com, The i Paper, the London Evening Standard, Which? and Which? Tech. Her guilty pleasure is watching property programmes.

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