Asahan 1 Hydro Electric Power Plant (IFC-33853)

  • Indonesia
Geographic location where the impacts of the investment may be experienced.
Specific Location
North Sumatra
Whenever identified, the area within countries where the impacts of the investment may be experienced. Exact locations of projects may not be identified fully or at all in project documents. Please review updated project documents and community-led assessments.
Financial Institutions
  • International Finance Corporation (IFC)
International, regional and national development finance institutions. Many of these banks have a public interest mission, such as poverty reduction.
Project Status
Stage of the project cycle. Stages vary by development bank and can include: pending, approval, implementation, and closed or completed.
Bank Risk Rating
Environmental and social categorization assessed by the development bank as a measure of the planned project’s environmental and social impacts. A higher risk rating may require more due diligence to limit or avoid harm to people and the environment. For example, "A" or "B" are risk categories where "A" represents the highest amount of risk. Results will include projects that specifically recorded a rating, all other projects are marked ‘U’ for "Undisclosed."
Voting Date
Apr 30, 2014
Date when project documentation and funding is reviewed by the Board for consideration and approval. Some development banks will state a "board date" or "decision date." When funding approval is obtained, the legal documents are accepted and signed, the implementation phase begins.
A public entity (government or state-owned) provided with funds or financial support to manage and/or implement a project.
  • Hydropower
The service or industry focus of the investment. A project can have several sectors.
Investment Type(s)
Equity, Loan
The categories of the bank investment: loan, grant, guarantee, technical assistance, advisory services, equity and fund.
Investment Amount (USD)
$ 7.50 million
Value listed on project documents at time of disclosure. If necessary, this amount is converted to USD ($) on the date of disclosure. Please review updated project documents for more information.
Loan Amount (USD)
$ 75.00 million
Value listed on project documents at time of disclosure. If necessary, this amount is converted to USD ($) on the date of disclosure. Please review updated project documents for more information.
Project Cost (USD)
$ 285.00 million
Value listed on project documents at time of disclosure. If necessary, this amount is converted to USD ($) on the date of disclosure. Please review updated project documents for more information.
Primary Source

Original disclosure @ IFC website

Updated in EWS Nov 29, 2019

Disclosed by Bank Feb 10, 2014

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Project Description
If provided by the financial institution, the Early Warning System Team writes a short summary describing the purported development objective of the project and project components. Review the complete project documentation for a detailed description.

According to IFC the project will support BDSN's operational 180 MW Asahan-1 hydropower plant (HPP) in North Sumatra, Indonesia. The plant has been fully operational since January 2011 and sells electricity to PLN pursuant to a long-term PPA expiring on Dec 31, 2040 on a take-or-pay basis of 1,175 GWh of electricity per year. Asahan-1 is developed by the Independent Power Producer (IPP) BDSN, which is owned by Fareast Green Energy and PJB, a subsidiary of PLN (the national power company), respectively. The HPP located 25 km downstream of Lake Toba on the Asahan River in North Sumatra, Indonesia, approximately 130 km southeast of the city of Medan. Land acquisition and construction of the plant was initiated in 1997, but was stalled a year later following Indonesia's financial crisis. Construction restarted in 2006/7 and the HPP was finally commissioned in 2010, having been constructed and part-financed by China Haudian Engineering Corporation (CHEC), which also acted as the EPC contractor and subsequently managed by CHD Power Plant Operation Co. Ltd (CHDOC) as the O&M contractor until December 31, 2013, whereupon it was replaced by PJB Services.Asahan-1 is a run-of-river scheme developed to utilize the hydraulic head between the Regulating Dam and Siguragura Dam of the pre-existing Asahan-2 project, a three dam cascade developed between 1975-1982 to support the PT Inalum smelter, located on the North Sumatra coastline near Medan.The Asahan-2 scheme, which IFC is not supporting, comprises a 39 m Regulating Dam, a 47 m, 286 MW Siguragura Dam and HPP and a 73 m, 317 MW Tangga Dam and HPP. The scheme relies on releases from Lake Toba, the largest volcanic lake in the world, as the Asahan River is the primary drainage of this lake to the Straits of Malacca. The Asahan Authority, comprised of a number of state entities, was established to ensure smooth operation of the Asahan-2 project, including the Inalum smelter (originally developed and majority owned by several prominent Japanese companies, now owned and operated by the Indonesian Government).The Asahan-1 HPP comprises of a 6.5 km tunnel, 70 m surge shaft, 275 m penstock, powerhouse with two 90 MW Francis turbines, accommodation camp and switchyard (the latter handed over to PLN). The intake is located in the pre-existing Regulating Dam which drains water directly from Lake Toba, and the powerhouse is located at the top end of the pre-existing Siguragura Dam, into which the tailrace empties. The project is linked to the grid by an 8 km transmission line, though BDSN only owns and maintains the three transmission towers that link the transformer at the powerhouse with the switchyard.

Investment Description
Here you can find a list of individual development financial institutions that finance the project.

Equity US$ 7.5 million

Private Actor 1 Private Actor 1 Role Private Actor 1 Sector Relation Private Actor 2 Private Actor 2 Role Private Actor 2 Sector
- - - - PT Bajradaya Sentranusa (BDSN) Client -

Contact Information
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PT Bajradaya Sentranusa
Jln. Wijaya III No.5
Kebayoran Baru, Jakarta 12160
Telephone: 62-21-7202117
Fax: 62-21-7260584



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