More AD plants built but market fears remain The number of anaerobic digestion (AD) plants in UK has risen from 68 to 110 in under two years but the market is still fragmented and immature, says the government. Sign in to continue Sign In Email address Password Stay signed in Trouble signing in? Reset password: Click here Email: mineralplanning@haymarket.com Call: 0208 267 8120 RegisterFREE Limited free articles a month Free email bulletins Register Subscribe Prices on request Full access to mineralandwasteplanning.co.uk Exclusive event discounts Mineralandwasteplanning print magazine Plus lots more including our State of the Industry Report. See all benefits