The renewable energy plant in Dunbar, delivered with project partner Babcock & Wilcox, has now been handed over to Viridor.

The same client terminated the contract of Interserve on a similar project in late 2016 following delays and increased costs, replacing the firm with Doosan Babcock.

In November, Viridor said it still expects to receive at least £64 million from the company for remedial works.

The Dunbar Energy Recovery Facility can process up to 38 tons of municipal waste per hour, delivering power to thousands of homes and businesses. It will contribute towards the Scottish Government’s target of sending zero biodegradable municipal waste to landfill by 2021.

Dougie Sutherland, executive director at Interserve, said: “We are pleased to have completed the Dunbar project and handed it over to our customer Viridor Enviroscot Ltd. This is an important milestone in the transformation of Interserve.”

Interserve’s remaining energy-from-waste projects are with Babcock & Wilcox in Rotherham, South Yorkshire, and Margam in south Wales – as well as a plant in Derby being developed with Renewi, which started taking in waste in January last year.