Hundreds of jobs have been lost at a major Welsh employer as it announced it has entered administration. Almost 300 staff at Consumer Energy Solutions, which has sites in Swansea and Rhondda Cynon Taf, have lost their jobs after City Energy Group, which owns the company, confirmed it was undergoing a restructure.

A notice posted on the Consumer Energy Solutions (CES) website on Friday announced that administrators had been appointed. It added that the energy company had "ceased trading with immediate effect". CES employs 295 people in Swansea and Treorchy and administrators are now responsible for supporting all workers through the job losses.

A member of staff who spoke to WalesOnline after the company told workers their jobs were at risk in the days before Christmas said people were "in turmoil" after being told the grim news on a Teams call. The employee, who did not want to be named, added: "I am just beside myself along with my colleagues."

The announcement also confirmed CES will be unable to complete any further work for customers. For our free daily briefing on the biggest issues facing the nation sign up to the Wales Matters newsletter here.

The group previously said the proposed restructure and job losses were the result of the end of the UK Government-backed energy scheme ECO4 which it operated.

The initiative, which helped homeowners save on home energy upgrades, such as insulation, solar panels, and heat pumps, is due to come to an end this year.

The notice said: "Please note that James Saunders and Michael Lennon of KR8 Advisory Limited were appointed as joint administrators of Consumer Energy Solutions Limited on January 9, 2026, the company has ceased trading with immediate effect.

"The company is unable to complete any further work for customers. It should be noted that the administration of the company does not involve any other companies in the City Energy Group.

"The joint administrators will be contacting creditors and employees directly to confirm the next steps and how claims will be processed. You do not need to do anything further at this stage.

"As Consumer Energy Solutions has entered administration, we will be unable to carry out any remedial works or repairs, or to progress or resolve any existing complaints.

"If you have had an installation completed by Consumer Energy Solutions and are experiencing any issues that you believe require rectification, we refer you to the following insurance backed guarantee providers who will be able to advise."

A spokesperson for the Department of Energy Security and Net Zero said: "The ECO and GBIS schemes were not delivering value for money.

"We are instead investing an additional £1.5 billion into our Warm Homes Plan, taking it to nearly £15 billion – the biggest ever public investment to upgrade homes and tackle fuel poverty."