Precision, progress, power

The Asahan 3 hydropower plant is a state-of- the-art renewable energy project that harnesses the vast potential of the Asahan River in North Sumatra, Indonesia. With its ability to generate over 174 MW of clean energy, this facility is poised to significantly contribute to meeting growing regional energy demand and reduce Indonesia’s reliance on fossil fuels.

ANDRITZ was responsible for providing critical metalwork (2,200 tons), consisting of 12 sets of roller gates, four sets of sliding gates, three sets of stop logs, nine sets of trash racks, one set of trash rack cleaning machine, one lane of steel penstock with internal diameter of 5.30 m and a length of 338 m, one set of Penstock Isolating Valve (PIV) DN 5.30 m-PN 6 bar, and advanced Building Information Modelling (BIM) software. Additionally, ANDRITZ was also instrumental in implementing the telemetry flood warning system for improved safety and monitoring. The contract agreement was officially signed in September 2019 and the project was completed in December 2024, marking a significant milestone in Indonesia's energy landscape.

In a remarkable achievement, the Asahan 3 project was completed in just five years. This was made possible by the innovative use of BIM, marking the first time this advanced technology has been applied to hydroelectric power plant construction in Indonesia, accompanied by the cooperation of all stakeholders. According to Mr. Wiluyo Kusdwiharto, Director of PLN's Mega Project & Renewable Energy Division, the successful and timely completion of Asahan 3 underscores the potential of modern technology to streamline and improve large-scale energy projects.

As part of an initiative encompassing 37 electricity projects in 18 provinces, to increase energy accessibility and advance Indonesia’s renewable energy goals, Asahan 3 was officially inaugurated by Indonesian President Prabowo Subianto on January 20, 2025. This milestone not only highlights the efficiency of the power plant but also sets a new benchmark for future hydropower developments in Indonesia and beyond.

Authors: Evan Juna, Anita Wijayanti