Emergency services were called to , Barry, at approximately 9.32am on July 2.
The fire led to the evacuation of the site, with all personnel reported safe. Crews from at least 15 stations across South Wales responded.
South Wales Fire and Rescue Service said residents in nearby areas, including Rhoose and Font-Y-Gary, should keep doors and windows closed due to smoke.
SWFRS dealing with large fire at Aberthaw Power Station | Barry And District News
Tony Redman, group manager, said: “Crews continue to tackle the fire at Aberthaw Power Station, Barry.
“We are advising residents to keep their windows and doors closed.
“Although the current wind direction is carrying the majority of smoke out to sea, smoke may affect those in areas including Rhoose and Font-Y-Gary.”
Emergency services deployed a large response including eight fire appliances, four water bowsers, two aerial hydraulic platforms, and a range of specialist equipment.
Fire crews from Ely, Llantwit Major, Kenfig Hill, Barry, Penarth, Whitchurch, Cardiff Central, Pontypridd, Maindee, Caerphilly, Merthyr Tydfill, New Inn, Cwmbran, Tonypandy and Bridgend attended the scene.
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 said: “The situation is currently being managed by the emergency services and our on-site teams.
“All personnel have been reported safe.
“Our priority is the safety and wellbeing of everyone involved.”
Images and video footage from the scene showed thick plumes of smoke rising into the sky.
The cause of the fire is not yet known.
