Gwynt Cymru Limited owns the rights to utilise the landfill gas generated at Bryn Posteg landfill site in Wales. The company was incorporated in 2003. Gwynt Cymru Limited previously operated as a subsidiary of Renewable Energy Holdings Plc until February 26, 2010, when it was purchased by Potters GCL Limited (Potters), a company related to Sundorne, the acquirer named in the announcement.
Gwynt Cymru Limited now operates as a subsidiary of Potter Group owned Sundorne Products (Llanidloes) Limited.
As waste decomposes anaerobically methane gas is produced – methane is a greenhouse gas with a global warming potential 21 times greater than the equivalent quantity of carbon dioxide.
Instead of allowing this gas to escape wells are drilled into the landfill cells and the gas is extracted and burnt in a reciprocating engine which drives an electrical generator connected to the grid.
The engine generates 1MW of electricity, sufficient to supply at least 2,000 homes