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Complete idiots for building their own AD plant?

Leading tomato producers Guy & Wright describe themselves as “complete idiots” for building their own AD plant. Here EN looks closely at the statement, project and lessons learned.

Guy & Wright AD & biogas plant

Fifteen years ago leading tomato producers Guy & Wright had their own AD plant built. When the first 1800m3 digester was installled on the 100-acre site in Hertfordshire, England, John Jones (great grandson of Mr Guy) could be forgiven for wondering what on earth he’d taken on!

As if producing hundreds of tons of top-quality tomatoes each year wasn’t enough to think about, Mr Jones was now getting to grips with that very steep biogas learning curve of feedstocks, temperatures and digestates.

A decade and a half on, with a second, 7000m3 digester, no

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