The borings seemed successful, and the Prestatyn Coal Company was formed to commence operations proper, however the project was abandoned before it got off the ground.

Bench scale trials was carried out on site but the project became a victim of the miners strike and the subsequent cut back in research funding for this and clean burn technology.

The gas is sweetened with an amine solvent to remove sulphur compounds to below 3.3 ppm and chilled to reduce the hydrocarbon dewpoint.

The processing plant was originally part of the BHP development of the Liverpool Bay area,[6] but now owned and operated by Eni.

[7] Gas is transported through a 27-km (17 mile) underground pipeline at 30 bar along the North Wales coast to Connah's Quay.

A secondary beam shone up the River Dee, towards the hamlet of Dawpool, in Cheshire, on the English side of the estuary.

It was replaced in 1844 with a metal pile lighthouse, bearing a white light,[9] put up by order of the Corporation of Trinity House.