Drax will launch a public consultation later this month on revised plans to build a new 299MW open-cycle gas turbine (OCGT) power station near Swansea.
If approved the £100 million site could generate power for up to 150,000 homes.
Local residents were originally consulted on the proposals in 2014 but the project was shelved in 2015 due to market uncertainty.
The process is being relaunched after the Drax Group acquired the development last year alongside three other OCGT projects.
The plant at Abergellli Farm will provide flexible back-up power to support growth of intermittent renewable generation and is expected to run for no more than 2,250 hours in a given year.
Drax Power chief executive Andy Koss, said: “As a result of what was learned during the consultation undertaken in 2014 and other studies, we have made a number of changes to the original proposals.
“For example, the cable for the electrical connection has been put underground instead of having an overhead line; we have selected an access route from the B4489 to the west of the site, and reduced the number of stacks from five to one.”
As its capacity will exceed 50MW, a development consent order will need to be obtained from the secretary for state of business, energy and industrial strategy to build, operate and maintain the plant.
“We are looking forward to sharing our latest plans at the public exhibitions next month and hearing what local people think about them before we finalise the scheme and submit a Development Consent Order application,” Koss added.
The power station could be operational by 2022 depending on market conditions and the outcomes of the consultation and planning processes. Up to 150 temporary jobs are expected to be created during the two-year construction period along with 15 permanent jobs once the plant is up and running.
Abergelli Power – the Drax subsidiary developing the project – will hold a public consultation on the proposals between 16 January and 19 February.