Peusangan Hydropower Project Achieves First Synchronization Milestone

Photo property by PLN

Date : Nov 2026

Peusangan

Hydropower

Milestone

JAKARTA - After more than three decades of development, the Peusangan Hydropower Project in Aceh, Indonesia, has reached an important milestone. Peusangan 1 Unit-1, with an installed capacity of 22.5 MW, successfully achieved its first synchronization with the electricity grid on Saturday, 31 October 2026, at 23:34 Western Indonesian Time (WIB), with an initial load of 1.85 MW. The synchronization process was completed safely and smoothly.

Located in Silih Nara, Central Aceh Regency, Aceh Province, the Peusangan Hydropower Project is an important initiative to strengthen Indonesia’s renewable energy capacity and support a more sustainable electricity supply.

Beyond its technical significance, the first synchronization represents a meaningful achievement in the project’s long and challenging development journey. This milestone reflects the perseverance, dedication, and collaboration of the many stakeholders involved, marking an important step forward in the continued development of hydropower infrastructure in Indonesia.

It is also worth noting that the area experienced power outages and temporary isolation during the heavy rainfall disaster in November 2025. The grid connection of Peusangan 1 is expected to enhance the reliability of the local power supply and reduce concerns over similar disruptions in the future.

Nippon Koei’s Contribution to the Peusangan Hydropower Project

The project also required considerable time and effort by the Employer to build consensus with local communities. Throughout this process, Nippon Koei provided continuous technical support to the Employer, responding carefully and persistently to the technical needs and concerns raised by various stakeholders and contributing to the steady progress of the project

Meeting before the first synchronization between the team from the employer, contractor and consultant.

Nippon Koei continues to contribute to the development of the Peusangan 1 and 2 Hydropower Projects, providing engineering consultancy services, including detailed design and construction supervision.

Through its continued involvement, Nippon Koei is proud to contribute its engineering expertise to Indonesia’s renewable energy development and electricity supply. The Peusangan Hydropower Project reflects Nippon Koei’s commitment to acting with integrity and contributing to society through technology and engineering—demonstrating how engineering expertise can support meaningful infrastructure development and long-term benefits for society.

Source: 31 Tahun Penantian, PLTA Peusangan 1 Unit-1 Berhasil First Synchronization, Tonggak Baru Energi Bersih Aceh.