Biogen has acquired Tamar Energy, one of the largest anaerobic digestion (AD) owners and operators in the UK, for an undisclosed sum. A number of Tamar Energy’s existing shareholders have rolled-over their investment into the combined group.

The combined group operates thirteen AD plants and six composting sites located across England, Scotland and Wales. Working with supermarkets, the hospitality industry, food manufacturers and local authorities across the UK, the AD sites take in over half a million tonnes of food waste each year and generate 25MW.

Biogen is a portfolio company of Ancala Partners, whose managing partner, Spence Clunie, said

“Acquiring Tamar Energy represents an opportunity for us to grow our platform and create one of the largest AD operators in the UK. The combination enables us to improve our service to all stakeholders, including customers and local communities.”