Last year, the demand expanded by 1.2 per cent.
"The primary commercial energy demand should stand at 2,055 barrels of oil equivalent per day," he said on Thursday.
The Office of the National Economic and Social Development Board estimated the 4-5 per cent economic growth rate for Thailand this year, as global demand for Thai exports tend to rise.
Under this assumption, while fuel oil demand should expand by 1.4 per cent and natural gas by 4 per cent. Demand for hydropower and energy imports would rise by 7 per cent.
Electricity generating capacity is expected to rise by 4.1 per cent this year.
In 2013, when the economy expanded at 3 per cent, primary commercial demand went up by 1.2 per cent from the previous year.