Advantages:

• Balancing supply and demand

• Upgrade of cheap electricity at off-peak times to valuable energy at times of high demand.

• Profitable trade of energy

•Fast response (instantaneous)

• Frequency Control

• Voltage Control

• Blackstart Capabilities

•Reduced CO2 emissions

Disadvantages:

•Long construction times

• High capital expenditure

•Costs over 1.5 million euro per MW capacity

•Ecosystem damage and loss of land

Tuanku Jaafar Power Station is one of the main power stations in Malaysia, located in Port Dickson, Negeri Sembilan. The power station belongs to Tenaga Nasional Berhad and is a state-of-art combined cycle power plants comprise PD1 (750MW MHI Technology) and PD2 (750MW GE-TOSHIBA Technology).

PD1 was on commercial loading in 2005 whereas PD2 started in February 2009. Both combined cycle plants are firing natural gas supplied by Petronas with distillate as a stand-by fuel.

The first golden era of Tuanku Jaafar Power Station began in 1969. TJPS was then a conventional thermal power plant (firing fuel-oil) 4 x 60MW units, followed with 3 x 120MW units (commercialized in 1978), and a 25MW Gas Turbine (1978) used for blackstart and peaking purposes.

In 2000, the conventional power plant was dismantled in stages to allow for rehabilitation project, which was fully completed in 2009. Tuanku Jaafar Power Station has now become the power plant of choice (top in the merit order) with high efficiency, full automation (Automatic Governor Control-AGC), in compliance to the international standards and environment.