Increasing oil production takes quite a few years, involving time spent on seismic studies, exploratory drilling, production drilling, as well as construction of infrastructure for transportation and refining.
Now, rural regeneration agency Cadwyn Clwyd has launched a project to revive small-scale hydro-electric power production in rural Denbighshire, launching feasibility studies for using water power on the Dee at Llangollen, and on the Alyn at Llandegla and Loggerheads.