Evaluation of Coal-Fired Power Plant Emission Reduction in Indonesia in Line with the Indonesian Government's Roadmap Towards Net Zero Emissions 2060

Bayu Prabowo, Rinaldy Dalimi — Thu, 16 Apr 2026 00:00:00 +0000

Indonesia aims to achieve Net Zero Emissions (NZE) by 2060, with the electricity sector as the primary contributor to emissions due to the dominance of coal-fired power plants (CFPPs). This study evaluates the emissions trajectory of Indonesian CFPPs and the alignment of their implementation with the national energy transition roadmap through 2045. The analysis was conducted using unit-level operational data from Global Energy Monitor (GEM) covering 318 CFPP units (71.63 GW) that are operational, permitted, announced, or under construction. Annual and cumulative emissions calculations were based on the technical characteristics of each unit, including capacity, commercial operation date (COD), and combustion technology. The results show that, under a baseline scenario without accelerated retirement, average annual emissions will reach 394.607 MtCO? during the period 2026–2045, with total cumulative emissions of 7.892 GtCO? by 2045. The findings also indicate a concentrated distribution of emissions, with the 20 highest-emitting units contributing 24.9% of total annual emissions, suggesting carbon lock-in in a small number of large-capacity power plants. Although the government’s roadmap establishes milestones for the phase-out of CFPPs in 2031, 2037, and before 2055, it does not include quantified emission reduction targets or specify which units will be retired; therefore, consistency with the decarbonization pathway cannot yet be verified quantitatively. These findings indicate that, without explicit and measurable emissions-based interventions, the operational structure of coal-fired power plants through 2045 will not automatically align with the decarbonization trajectory toward NZE 2060.

Improving the Testing Facilities for Oil Separation in Grease Samples by Developing the Preter (Pressure Digital Timer) Device

Tue, 28 Apr 2026 00:00:00 +0000

Oil Separation testing is the determination of base oil separation from grease during storage at a constant temperature with a pressure of 0.25 psi for 24 hours using an oil separation device. Oil separation testing is a critical parameter in grease product specifications to meet the company's established quality standards. The high %RSD impacts include customer complaints caused by product sedimentation due to oil and soap separation in grease, which clogs suction pumps with solid soap. Customer complaint data from 2024 confirmed these losses, encompassing product replacement costs, return transportation costs, and failed product rework costs. From an internal perspective, during the 24-hour testing process, pressure frequently drops because water in the tube cannot withstand excess pressure and spills out, forcing analysts to periodically refill the tube. This requires analysts to remain on standby for 24 hours, generating overtime costs totaling 5,460 hours from January to October 2024. This research focused on improving the %RSD value through the development of the PRETER tool, consisting of two main components: a Safety Valve as an automatic pressure controller and a Panel Box as a time controller and power supply. Testing involved seven different analysts. Results showed a %RSD of 1.41% for conventional grease and 3.57% for complex grease, both below 5%, proving that the PRETER tool effectively improves testing precision, streamlines the work process, and eliminates the need for 24-hour monitoring.

Asian Journal of Engineering, Social and Health

Evaluation of Coal-Fired Power Plant Emission Reduction in Indonesia in Line with the Indonesian Government's Roadmap Towards Net Zero Emissions 2060

Improving the Testing Facilities for Oil Separation in Grease Samples by Developing the Preter (Pressure Digital Timer) Device