Jera is a joint-venture between utilities Tokyo Electric Power (Tepco) and Chubu Electric Power.
The new plan involves the development of approximately 5,590MW of thermal power generation capacity including replacement of aging thermal power plants that are owned by TEPCO Fuel & Power.
As part of the plan, two power stations with combined capacity of 4,290MW will use LNG as fuel while one facility with 1,300MW capacity will use coal.
Jera said that Goi nag-fired power plant will have three units with 780MW capacity while other gas-fired facility, Anegasaki, will feature three 650MW units.
The coal facility in Yokosuka will comprise two units with 650MW capacity.
The plan covers electricity supply and electricity facilities installation in Japan over the next 10 years.
A Jera spokesman was reported by Reuters as saying that the company will file an environmental assessment for the upgrade of Anegasaki plant.
The spokesman noted that the Goi and Anegasaki together consume a total of more than 3 million tons of LNG annually, upon commissioning.
Additionally, the Yokosuka facility is expected to use 3.5 million tons of thermal coal per year.