One of World's Largest Geothermal Units Begins Operations in Indonesia

One of World's Largest Geothermal Units Begins Operations in Indonesia

The first of three 110-MW units at the $1 billion Sarulla geothermal power
plant in Indonesia's North Sumatra province commenced commercial operation
this March. When the next two units come online as anticipated by 2018, the
plant will be one of the largest geothermal power plants in the world.

The unique project operated by Sarulla Operations combines flash and binary
technologies to increase efficiency and features a 100% reinjection of the
exploited geothermal fluid (Figure 6).

Construction on the project began in 2014, essentially seeking to develop
two geothermal resources, Namora-I-Langit and Silangkitang. Toshiba Corp.
supplied the geothermal steam turbines and generators for the flash systems,
while Ormat Technologies provided the conceptual design of the geothermal
combined cycle unit power plant. Ormat also supplied its Ormat Energy
Converters, which serve as the condensing units for the steam turbines and
utilize the separated brine for maximum resource exploitation and maximum
power output, Ormat said in a statement.

Hyundai Engineering and Construction Co. was the engineering, procurement,
and construction contractor. Power generated from the first unit will be
sold to Perusahaan Listrik Negara, Indonesia's government-owned electricity
company, over a period of 30 years.

The project has a number of high-profile owners, including the Itochu Corp.
(25%), Kyushu Electric Power Co. (25%), PT Medco Power Indonesia (19%), and
INPEX Corp. (18%). Ormat International holds the remaining shares in the
operation company. It also has a long list of financial backers: The Japan
Bank for International Cooperation loaned $492 million, and other financiers
included the Asian Development Bank, Bank of Tokyo-Mitsubishi UFJ, ING Bank,
Societe Generale, Sumitomo Mitsui Banking Corporation, Mizuho Bank, and
National Australia Bank.

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Link to Original Article:
http://www.powermag.com/one-of-worlds-largest-geothermal-units-begins-operat
ions-in-indonesia/

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John Diecker
APT Consulting Group Co., Ltd.

www.aptthailand.com