It is a simple fact of life that unfortunately it is cheaper to import coal from abroad than use our own deep mine resources. Very few locations in the UK are suitable for opencast methods. The Ffos y Fran opencast mining at Merthyr Tydfil can produce decent Welsh steam coal, and can do so for another 5 years.
I have a shed full of Welsh steam coal which will see me out on my miniature locos.
My home sits above coal mine workings, but where I live in the South Wales Valleys this was not steam coal but decent house coal.
Cardiff ceased to export coal in 1963. In the severe winters of the post war era in the late 1940s there was a severe shortage of UK produced coal for domestic demand. This continued to be the situation for many years after and was a factor in election strategy as we tried to pay off the huge USA government loans during WW2. UK coal was exported to try and solve the balance of payments deficit. The UK domestic market prices were fixed, but UK supply was insufficient to meet demand.
Instead we imported USA cheaper coal!
What did this lead to?
It resulted in the Government in 1955 deciding to phase out UK steam locomotives, so that there would be no electoral pressure from Domestic consumers (voters) in cold winters having insufficient coal to burn to heat their homes.
Cheers,
Julian