JAKARTA. PT Perusahaan Listrik Negara (PLN) still hopes for the mine mouth steam power plant (PLTU).
From this low-calorie coal-fired power plant, the red-plate electric company hopes to be able to streamline the supply cost of the plant which continues to swell.
Head of the PLN System Planning Division, Adi Priyanto, revealed that from the mine mouth PLTU, PLN could gain efficiency of around 20% to 40% compared to other thermal coal power plants.
In addition, mine mouth PLTU can also make low-calorie coal mining more economical because it can be absorbed more optimally without being burdened with transportation costs.
“The mine mouth PLTU is our mainstay in the future, because PLN wants to streamline the BPP. So we go to low-calorie (coal) mines by transmitting and building plants, reducing transportation costs,” Adi said.
Nevertheless, the mine mouth power plant cannot be built in any area. Adi said, the construction of this type of power plant must pay attention to the availability of energy resources and electricity demand or demand projections.
Therefore, there are only two islands considered suitable for developing mine mouth power plants, namely Sumatra and Kalimantan. In the PLN Electricity Supply Business Plan (RUPTL) in 2019-2028, PLN demands that there be additional plant capacity from the mine mouth power plant in the amount of 5,690 megawatts (MW), with details of 4,790 MW in the Sumatra region, and 900 MW in the Kalimantan region.
“That (target) for the next 10 years,” he said.
Unfortunately, until now there has not been one mine mouth PLTU ready to enter the PLN system. As is known, a number of mine mouth PLTUs have been caught in obstacles, such as the Riau-1 PLTU which has been hit by legal problems, as well as the contracted Kaltim-5 and Sumsel-6 PLTUs.