Britain’s fourth-biggest household energy supplier is lining up bankers to explore options including bringing in a new investor or a sale, 15 years after it launched in a bid to challenge the industry’s oligopoly.

Sky News has learnt that OVO Group, which was founded by Stephen Fitzpatrick, is close to hiring Rothschild to assist with a strategic review of the business.

City sources said this weekend that a range of possibilities would be considered during the process, which is expected to take several months.

These are likely to include a refinancing - with talks already underway about OVO’s existing borrowings - as well as issuing new shares to prospective investors, or a partial or full sale by some of the company’s shareholders.

An outright sale of the business is considered by insiders to be unlikely at this point, but is expected to be explored as part of the strategic review.

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Key to OVO’s valuation will be the growth of its technology platform, Kaluza, which was set up to license its software to other energy suppliers, and provides customers with smart electric vehicle charging and heat pumps.

OVO recently announced that AGL Energy, one of Australia’s biggest energy suppliers, had bought a 20% stake in Kaluza at a $500m (£395m) valuation.

Kaluza is understood to be exploring further expansion opportunities in Europe, Japan and the US.

OVO has also entered the electric vehicle car charging sector under the brand Charge Anywhere, adding 34,000 public charging points across the UK.

In 2022, OVO Group made an unadjusted loss of £1.3bn, which it blamed on a decline in the value of energy it had bought in advance to meet future supply commitments.

It said this had “no cash impact” in a corporate filing, and that this value would rise as customers used the energy it had bought.