Agri-Gen, which is based near Woodbridge in Suolk, is owned by a consortium of six local farmers who locally grow some 22,000 acres of arable and root crops, such as potatoes, carrots, parsnips and sugar beet. The anaerobic digestion plant is fed with a mixture of agricultural materials including rye, sugar beet, beet pulp, vegetable out grades and maize, although the farms try to minimise the amount of maize grown. The energy produced by the plant is used, amongst other things, to dry and cold store crops such as potatoes and onions. Since it began producing biogas four years ago the company has focused on expanding and running the plant, but is now in a position to carry out a number of improvements to the process, including the addition of pasteurisation to improve the biosecurity of t

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