The facility has been offline since March 2026 after cracks were discovered in three of the facility’s smoke tube boilers during routine inspections.
Viridor stressed that the cracks “did not pose a risk” to the environment, the local community or its employees.
Now the Energy from Waste (EfW) company has said that the Glasgow Recycling and Renewable Energy Centre (GRREC) is reaching the end of its repair process.
The process has included replacing boilers which are critical to bringing the site back into operation.
Viridor has also taken the opportunity provided by the downtime to undertake certain upgrades, including improving mechanical sorting at the facility and carrying out works to the anaerobic digesters.
A spokesperson for the company said: “As we prepare for recommissioning, there will be additional activity at the facility, including in the next few weeks, two large cranes positioned to support the lifting of large pieces of equipment.
“We are working closely with Glasgow City Council and our contractor partners throughout the repair programme to ensure the facility can return to operation safely and efficiently.
“We continue to provide services to the Council in line with our contractual obligations.”
In its latest financial report, Viridor confirmed a profit of £152.8 million in 2024/25.
Glasgow Recycling and Renewable Energy Centre (GRREC)
The GRREC is located at Polmadie on the south side of Glasgow and was officially opened in August 2019.
The facility was created on the site of a former waste transfer station.
In 2012, Viridor signed a £254 million waste treatment services contract with Glasgow city council, which is set to run for 25 years until 2037.
The deal included the regeneration of the waste transfer station into GRREC.
The redevelopment was set to cost around £154 million and was set to include domestic glass, plastics, paper, cardboard and metals, as well as mechanical biological treatment, anaerobic digestion and gasification facilities.
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