London will see opening of second commercial-scale AD plant in 2015

Construction has begun on London's second commercial-scale anaerobic digestion (AD) facility at Cattlegate Farm in Potters Bar.

The 25,000 tonne facility is currently under construction at Cattlegate Farm in Potters Bar

The 25,000 tonne facility is currently under construction at Cattlegate Farm in Potters Bar

The facility is expected to be commissioned late in the summer of 2015 and already has a grid connection for the export of 1MW of electricity. The technology will allow up to 30,000 tonnes of waste to be processed.

The digestate produced as a by-product of the anaerobic digestion process will be returned to Cattlegate Farm's land to increase yields and produce healthier plants.

The plant will be operated and managed by the owners of Cattlegate Farm, Oakwood Plant Service Group and recycling and waste management company Powerday, with funding having come from the UK Green Investment Bank and Foresight Group.

The announcement of the AD plant follows the official opening of the Cattlegate Farm composting facility, licensed to accept up to 25,000 tonnes of green waste per year, which took place earlier this month.

The combined cost of building both of these facilities will be £15m, with £11m being spent to build the AD plant.

Cattlegate Farm will accept green and food waste generated in the capital, including from the Rugby Football Union at Twickenham and Saracens Rugby Club.

In April, edie reported on the opening of London's first commercial-scale AD and composting facility - TEG Biogas in Dagenham.

Lois Vallely


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