France's state-controlled utility EDF is reportedly in negotiations to acquire So Energy, a smaller British electricity supplier whose Irish parent has put it up for sale. The move signals a fresh wave of consolidation among UK energy retailers, as larger players seek to expand their customer bases amid tightening margins and regulatory pressure.
According to Sky News, EDF Energy is one of several parties in talks with So Energy's owners, with at least one rival bidder still in the running. Industry insiders suggest that any successful bid would likely cover So Energy's customer book rather than the entire business, a cheaper and less operationally complex route to scale.
So Energy, founded in 2015, supplies roughly 300,000 household electricity customers. Ireland's Electricity Supply Board (ESB) acquired a controlling stake in 2021 and announced a strategic review this summer, appointing PwC to manage the sale. A spokesperson for So Energy confirmed the process in July, stating that ESB plans to focus on its core business.
Why EDF wants scale
For EDF, the appeal lies in regaining ground in a market where it has slipped behind competitors. Once among the 'big six' suppliers that dominated British energy, EDF now serves about three million customers and five million accounts, trailing well behind Octopus Energy and British Gas, owned by Centrica. Scottish Power faces a similar challenge.
Buying a customer book rather than a whole company allows EDF to add accounts directly while avoiding the complexities of absorbing an entire organisation. This approach has become increasingly attractive as the UK's retail energy market consolidates, with smaller suppliers struggling to survive.
The talks come at an awkward moment for British households. Ofgem, the energy regulator, has raised the price cap by 4% to £1,723 per year for the autumn, meaning bills will climb just as the industry reshuffles. Meanwhile, the new government under Prime Minister Andy Burnham has announced plans to scrap VAT on domestic energy bills, part of a broader effort to tackle the cost-of-living crisis.
This acquisition would mark another step in the ongoing restructuring of the UK's energy retail sector, which has seen numerous suppliers exit the market in recent years. For EDF, it represents a strategic bet on the long-term viability of the British market, even as households face higher costs.
The outcome of the talks remains uncertain, but the potential deal underscores the shifting dynamics of European energy markets, where cross-border consolidation is becoming more common. As similar consolidation plays out in other sectors, energy suppliers are increasingly looking to scale up to remain competitive.
For So Energy's customers, the prospect of being absorbed into a larger group like EDF could bring stability, but also raises questions about service quality and pricing. The UK's energy market has been volatile, and this deal, if completed, would be a significant indicator of where the industry is headed.
