Gelliargwellt Uchaf Farm

Full planning permission was obtained for an anaerobic digestion facility which can process 35,000 tonnes of food waste and agricultural byproducts a year and generate up to 1.4 MW of electricity, enough to power roughly 3,000 homes for a year. The materials recycling plant, which has been operating under a series of temporary consents since 1993, will process up to 75,000 tonnes of waste wood, plastic, soil, metal and paper a year; and 15,000 tonnes of green waste.

Full planning permission was obtained for a one million tonne, four hectare quarry extension at the same site in August 2013. The extension enabled the continued excavation of high-quality pennant sandstone for a period of 10 years, with full restoration secured once excavation ceases.

Project Details

  • An anaerobic digestion facility
  • A materials recycling plant
  • A one million tonne, four hectare quarry extension



The Price family has owned and farmed at Gelliargwelt Farm since 1902 and, in the mid-1980s, began to diversify into quarrying and landfill and recycling. Since 2000, green waste has been brought to the site to be converted into compost and soil conditioner that is sold to clients including utility companies, landscape gardeners and the general public. It currently processes more than 80% of Caerphilly County Borough Council’s recycling.

The recycling facilities will operate in tandem with an existing In-Vessel Composting Facility, together with a blue pennant sandstone quarry. Farm activities and operations will form a cluster of complementary activities with clear benefits in terms of integration and efficient operation of waste-related activities.