Upon completion of the £5m expansion project, which is scheduled in April 2015, the facility plant will process more than 100,000t of food waste annually, generating up to 4.8MW of renewable electricity every hour.

Shanks UK Municipal Division managing director Peter Eglinton said: "Organic waste is one of the most environmentally damaging forms of waste to be sent to landfill so I am delighted that our Cumbernauld AD facility is continuing to reduce this burden on the environment by doubling the amount of this waste which it is able to process."

Expected to become the largest AD facility in Scotland, the expanded AD facility will use approximately 1800m3 of biogas per hour to produce the power in order to meet the electricity demand of around 12,000 homes each year.

Energen Biogas operations director Robert Etherson said: "By expanding our facility we are able to significantly grow the renewables industry in Scotland and improve resource efficiency.

"Scotland’s vision where all waste is seen as a resource is one we are firmly aligned with and we are pleased we can contribute to making a Zero-Waste Scotland a reality."