The £10million development began in 1954, with the sinking of two of the deepest shafts in the coalfield to allow access to the Peacock anthracite seam. The North (upcast) was Шаблон:Convert and the South Шаблон:Convert deep respectively. Two insets were also driven, No.3 at Шаблон:Convert and No.4 at Шаблон:Convert deep respectively.
In 1962, the colliery developed access to the Red Vein seam, resulting in the abandonment of the lower Peacock seams from 1963. The result was that during the 1970s, 900 men produced an average of 300,000 tonnes of coal per annum, from a system that covered Шаблон:Convert with over Шаблон:Convert of roadway.
The colliery was one of the first NCB pits to deploy retreat mining, whereby roadways were driven to the limit of the coal reserves, and then the coal faces then worked towards the pit bottom.
Closure
Abernant closed in 1988.
Present
In September 2011, Waste Recycling Group Ltd submitted plans for the development of an anaerobic digestion facility on the old colliery site. Proposed to run on food waste collected from 350,000 homes in Bridgend, Carmarthenshire, Neath Port Talbot, Pembrokeshire and Swansea, the 2.3 MW facility would be capable of generating enough electricity to meet the demands of approximately 5,000 homes, and producing fertiliser.[3]
