Project details

2024 HSS Assessment

Assessment tool: Hydropower Sustainability Standard
Assessment stage: Operation
Assessment date: December 11th to 17th, 2024

Public Consultation Form:

Sustainability assessment overview

The Asahan-3 project has a relatively small footprint and adds limited incremental impacts to a river system that is already heavily modified. The project benefits from PLN’s experience and established environmental social, and labour management systems, with monitoring in place for water quality, sedimentation, and community health and safety.

Key issues include economic displacement of around 500 landowners during construction and additional impacts on fishing and rafting livelihoods as the project enters operation. These households were physically resettled. PLN has provided compensation, replacement infrastructure, employment opportunities, and CSR initiatives, and continues to monitor vulnerable groups. Biodiversity impacts are mitigated through forest restoration and reforestation requirements, although uncertanties remain regarding aquatic ecosystems due to altered flow regimes. The project contributes to Indonesia’s climate goals by displacing coal generation and benefits from stable inflows buffered by Lake (Danau) Toba.

The public consultation period for the Preliminary Assessment Report of the PLTA Asahan 3 is open from October 28th to December 27th 2025.

Submit your comments by clicking the link below:
Submit Comments (English)Submit Comments (Indonesia)

Evidence of the distribution of the assesment report to provide comments is available here.

Visit HSA Webpage

Comment mailboxes and printed copies of the Preliminary Assessment Report in English and Indonesia are available at the following offices:

• Tangga Village hall office
• Meranti Utara hall office
• Asahan 3 Basecamp Mosque
• Rumah Makan Nasional Oppungranto