The central province of Khanh Hoa wants the government to add a new liquefied natural gas project worth $27 billion to the 2021-30 national energy master plan.
It includes an LNG plant, a dock and warehouses to be built by U.S. company Millennium Energy, it said in its proposal to the government.
They will be built in the south of the Van Phong Economic Zone.
The 4,800-megawatt plant will cost $22.5 billion.
It will be built in two phases, with the first to start commercial operation in 2027-30 and the second, after 2030.
The warehouses will be able to store 17 million cubic meters of LNG.
In July last year, Millennium did a survey of a 360-hectare plot of land in the economic zone for the project.
The company is also eyeing a $15-billion LNG project in Soc Trang Province in the Mekong Delta.
In June last year, it proposed to the central province of Thanh Hoa to develop a $7-billion LNG complex there.