The energy giant said it has agreed to acquire the energy supply customers of Robin Hood Energy for an undisclosed sum.

Robin Hood Energy, run by Nottingham city council, currently serves around 112,000 domestic customers and 2,600 business customers.

The transaction is expected to complete on 16 September with customers moving to British Gas in the next few months.

Centrica said Robin Hood Energy customers will be given information about the process in the coming weeks.

They’ll be offered a British Gas tariff at the same or lower price to the one they’re currently on.

Customers will also be given details about other British Gas services such as its rewards scheme, Homecare and Hive products.

The sale of Robin Hood Energy will also lead to redundancies for the 250 staff at the council-run firm. It was founded in 2015 to rival the ‘big six’ energy suppliers which dominated the energy market.

But a damning report published this year revealed the energy company had lost £34m.

Chris O’Shea, group chief executive of Centrica, said: “As well as our actions to simplify and modernise our business, we are focused on returning to profitable growth in our core markets and investing in value generating opportunities.

“Our customers are at the heart of everything we do, and we are delighted to welcome Robin Hood customers to British Gas. We are pleased to be able to offer every customer moving to British Gas a tariff which means their price will not be any higher and, importantly, they will be supplied with green electricity and have access to a range of other benefits – such as British Gas Rewards with free energy days and exclusive offers on services such as boiler cover.”