Malaysia’s TNB has added 1000 MW of capacity to its grid with the start-up of a fourth unit at the Manjung power plant.

The coal-fired unit is the latest ultra-supercritical unit to start operating in the country and will meet rising power demand in the country as well as contribute towards stability of the grid system, said TNB, which already operates 2100 MW of capacity at the Manjung site in Perak.

"The plant has met all the required tests and is currently running within the expected operating parameters," said TNB Janamanjung Managing Director, Shamsul Ahmad, adding that the unit is now Southeast Asia’s most efficient power plant.

A consortium of Alstom and China Machinery Import and Export Corporation (CMC) built Manjung 4 under a turnkey contract with TNB. Alstom was responsible for the engineering, construction and commissioning of the ultra-supercritical boiler, steam turbine, generator, condenser, fabric filter and seawater FGD system, while CMC carried out the civil works.