Britain needs to invest in major new infrastructure to replace ageing coal and nuclear plants set to close in the 2020s.
The British government is set to approve what's being called a revolutionary new power generator.
Tidal lagoon generator will harness the energy of the tides coming up the coast of Wales.
The 1.5 billion dollar project is expected to bring power into the country for generations.
The project involves building a 9.5 kilometres (6 miles) horseshoe-shaped sea wall in Swansea Bay, about 170 miles west of London, to capture tidal power.
TRT World's Simon McGregor-Wood reports.