The blaze began at Aberthaw Power Station near Barry on July 2, and prompted warnings for nearby residents to keep their doors and windows closed.
Crews from South Wales Fire and Rescue Service were at the scene at around 10.40am and remained on site for hours as they worked to bring the fire under control.
A spokesperson for South Wales Fire and Rescue Service said: “South Wales Fire and Rescue Service is currently at the scene of a large fire at Aberthaw Power Station in Barry.
“Residents are advised to keep windows and doors closed due to large amounts of smoke.
“The incident remains on-going, there are no further updates at this time [11.36am]”.
Andrew RT Davies, Conservative Senedd member for the Vale of Glamorgan and Bridgend, said: “I’m deeply concerned by the fire at the Aberthaw Power Station site – and I’d like to thank the brave firefighters at the scene who are working hard to make the area safe.
“All residents in the area should follow advice issued by authorities in the area – including to keep doors and windows closed.
“If any constituent requires further information, please do get in touch.”
A spokesperson for CCR Energy who own Aberthaw Power Station said: “The situation is currently being managed by the emergency services and our on-site teams.
“All personnel have been reported safe, and our priority is the safety and wellbeing of everyone involved.”
Residents were quick to express their shock at the fire on social media, with many hoping nobody had been injured.
One resident said: “Hope all are safe, that’s really bad”.
Another wrote: “Hope everyone is safe”.
Others expressed concern over the toxicity of the fire, emphasising South Wales Fire and Rescue Service’s warning to keep windows and doors shut.
