Supercritical Boilers
Steam generated under supercritical conditions improves the conversion of fuel into electricity, achieving a net thermal efficiency of 33.43%.
Engineered to deliver reliable energy, around the clock.
Two 660 MW supercritical units, fuelled directly from the mine, delivering dependable electricity to the Sumatra grid — held to a Three Zero standard.
01Power Plant
The largest mine-mouth power station in Sumatra.
Tanjung Lalang Power Plant (Sumsel-8 MMCFPP) comprises two 660 MW supercritical units (1,320 MW total) with a net dependable capacity of 1,243.44 MW. Located beside the Bangko Tengah mine in Tanjung Lalang, it converts coal into power just metres from the source.
Its scale and competitive, mine-mouth fuel cost make it a strong, dependable contributor to the Sumatra electricity system under the national merit order.
022025 performance
A year of strong, reliable generation.
Operating to world-class standards (NERC reference) with maintenance-driven reliability.
0GWhElectricity produced
ZeroForced outages (FOR 0%)
ZeroAccidents — “3 Zero” record
0%Equivalent Availability (EAF)
Emission Control System
Low-NOx Burners, Electrostatic Precipitators, Flue-Gas Desulphurisation Systems, and a Continuous Emissions Monitoring System (CEMS) installed at the chimney and integrated with SISPEK help control and continuously monitor emissions to support compliance with applicable environmental regulations.
AGC, Free Governor & PSS
Automatic Generation Control (AGC), Free Governor, and Power System Stabiliser (PSS) support real-time grid stability and reliable system operation.
Mine-Mouth Coal Supply
Coal is transported approximately 1.5 km by conveyor directly from the mine, supporting efficient, continuous, and low-logistics fuel delivery.
03From mine to grid
From the mine, to the Sumatra grid.
Mine-mouth coal
Bangko Tengah mine
Conveyor
~1.5 km belt
Supercritical boiler
steam generation
Turbine–generator
2×660 MW
Transmission
500 kV · ~45 km
Sumatra grid
millions of homes
- Managed by HBAP
- Managed by PLN UIP3B Sumatera
4,200kcal/kg min. coal (CSA)
~1.5 kmbelt conveyor from the mine
500 kVline to Muara Enim substation
04Safety & reliability
Three Zero, around the clock.
- Zero accidents — millions of safe work-hours
- Zero forced outages since commercial operation
- Planned maintenance & rapid defect elimination
- On-site fire & rescue and emergency-response teams
Operations are certified to ISO 9001, ISO 14001 and ISO 45001, with SMK3 Gold Flag recognition for occupational safety management.
Operational excellence
See how we generate responsibly.
Discover our sustainability commitments, or get in touch with our operations team.