MRICA HEPP (Indonesia Power Generation Business Unit) · MRICA HEPP (Indonesia Power – Generation...

INDONESIA POWER GENERATION http://repit.wordpress.com/ [email protected]

MRICA HEPP (Indonesia Power – Generation Business Unit)

Mrica Generation Business Unit is one of eight GBU in Central Java that are owned and operated by PT

Indonesia Power in Central Java. Mrica GBU is a hydro power plant utilizing a Dam, Reservoir or Run of

River system.


Mrica Generation Business Unit has 25 power generators within 14 locations and has 318.84 MW

installed capacities.

In 1971, Indonesia received aid from the Australian government to develop water resources for power

generation. From the results of the study by Snowi Mountains Engineering Corporation (SMEC) in 1972

proposed Maung and Mrica in watersheds Serayu for hydropower.

As it goes in 1974 conducted a feasibility study on watershed Serayu. In 1978-1980 compiled detailed

planning design by Teknopromn Export from the USSR. On May 15, 1982 conducted the working

contract between PLN and Sabcon (Scansa Comentgjuteriet, Asea AB and Sweedee Balfour Beaty

Construction LTd), and United Kingdom. As a consultant planner was SWECO AB of Sweden and

engineering and power teknopom export from the UK, while Wiratman and Ass redesign planning

results made by Teknopromexport (TPE). As the Supervisor Consultant was Sir William Halcrow and

Parners of England.

Type Hydro Power Plant

Area Central Java

Kind of Fuel Hydro

Power Capacity

1 PB. Sudirman 180.90 MW 2 Jelok 20.48 MW 3 Timo 12.00 MW 4 Wonogiri 12.40 MW 5 Garung 26.40 MW 6 Sempor 1.00 MW 7 Ketenger 8.04 MW 8 Wadaslintang 18.00 MW 9 Kedungombo 22.50 MW

10 Klambu 1.17 MW 11 Pejengkolan 1.40 MW 12 Tapen 0.75 MW 13 Sidorejo 1.40 MW 14 Tulis 12.40 MW

Total 318.84 MW

Owner PT. Indonesia Power

Shareholders PT. PLN

Activity Since 1937

Contact Teguh Adi Nuryanto – General Manager

Address Mrica Generation Business Unit JI. Raya Banyumas Km. 8. Kotak Pos 38, Banjarnegara 53471, Indonesia

Email [email protected]

Phone & Fax Tel. : (62-286) 597-081 Fax. : (62-286) 597-044

Web http://www.indonesiapower.co.id

mailto:[email protected]

http://www.indonesiapower.co.id/


1. PB. Sudirman

Sudirman (Mrica) Hydroelectric Power Plant Indonesia is located at Bawang, Central Java, Indonesia.

Location coordinates are: Latitude= -7.3927, Longitude= 109.6054. This infrastructure is of Type Hydro

Power Plant with a design capacity of 181 MWe. It has 3 unit(s). The first unit was commissioned in 1988

and the last in 1989.

This multipurpose scheme has a 800m long, 110m tall earth-filled and rock main dam across the Serayu

River. Other high-level dams stretch out on either side of the main dam to give a total crest length of

more than 5km. The open-air power house is connected to the reservoir by a 570m pressure tunnel.


No. Unit

Turbine Generator COD MW

Manufacturer Type Serial Number

1 Boving & Co vertical axis Francis 2021 ASEA 1989 60.30



2. Jelok

Jelok Hydropower Plant in Tuntang District, Semarang regency, has been in operation since 1937.

Electricity from the plant was once a major supplier of electricity demand in “gemeente” or municipal

Salatiga formerly inhabited by the Dutch. Jelok is the oldest hydroelectric power plant in Indonesia

because it operated in 1937 and managed at the time by the Dutch Government ANIEM. However, in

1955 Hydropower Jelok successfully taken over by Indonesian.

Jelok Hydroelectric power plant utilizing a stream of water from natural reservoirs Rawa Pening with its

capacity of 20.48 megawatts.

In the history manuscript of the national electricity which is always read every ceremony on October 27

and in the text of a short handover PT Indonesia Power, which is recited on every Oct. 3, the name of

Jelok hydropower plant unlikely called as the Central of hydropower Plant (HEPP) which was built by the

Dutch whereas it was built in 1937.

The second paragraph of the history of electricity just to mention: In 1927, the Dutch government

established S'Lands Waterkracht Bedrijven (LB), a company that manages the Plengan hydropower,

Lamajan hydropower, Tonsea Lama hydropower Plant in North Sulawesi and Steam Power Plant Jakarta.

Jelok Hydroelectric is located in Semarang district about 45 km from the city of Semarang, or 15 miles to

the northeast Salatiga. Jelok Hydroelectric currently managed by PT Indonesia Power, a PLN subsidiary

engaged in power generation, among the 14 hydropower in Central Java under the responsibility Mrica

Generation Business Unit.

Three engine Unit were built in 1937 and 1962, plus 1 unit more. With the water falls a height of 144

meters and installed power 4 capacity of 4 x 5.12 MW Jelok Hydroelectric can generate electricity by 93

GWh / year. Turbine made by Werk Escher Wyss Holland Spoor with horizontal Francis rotating shaft

type made by Oerlikon AG Brown Hemaf Generators in rotation of 600 rpm.

Water that moved the turbines were taken from Rawapening lake intercepted by the Tuntang river

which was then dammed by a dam that is equipped with 6 water gates.


Although it was already more than 70 years, the Jelok hydropower plant engine still operated as in good

condition with relatively low operating costs. Meanwhile, to keep and maintain the reliability, in 1994

generating engine was renovated by replacing the governor and the main inlet valve, retrofit 9 control

system and rewinding the generator stator.

Once before the interlinked of electrical interconnection system in Java, Jelok hydropower is one of the

power plants that are vital to meet the electricity needs in Central Java. Based on installed capacity,

Jelok Hydroelectric current contribution to the production of UBP Mrica range of 6.37%.


Sriyoto - Senior Supervisor

Sub Unit PLTA Jelok

Desa Delik, Kec. Tuntang, Kab. Salatiga

Central Java

Tel. : (62-298) 322-507

Fax. : (62-298) 322-507

No. Unit



1 Escher Wyss Horizontal Francis 9176 Ellin Energie 1937 5.12



4 Escher Wyss Horizontal Francis NT 11010 Ellin Energie 1962 5.12

3. Timo Timo Hydroelectric power plant utilizing a stream of water from Rawapening natural lake after being

used by Jelok Hydro Power plant, with its capacity of 12 megawatts.

Mahsun – Maintenance Supervisor

Sub Unit PLTA Timo

Desa Jatirunggo, Kec. Klepu

Kab. Semarang. Post Box 50

Central Java

No. Unit

Turbine

Generator COD MW Manufacturer Type

Serial Number

1 Cescomoravska Horizontal Francis F 212 Skoda 1962 4.00



4. Wonogiri – Gajah Mungkur

Gajah Mungkur Hydroelectric power plant is a Hydroelectric power plant by damming up water

reservoir which is located 3 km south of the Wonogiri district town, Central Java province. Waters of an

artificial lake is created by damming up the longest river on the island of Java, Bengawan Solo river.

Started to be built in the late 1970's and began operating in 1978. Reservoir with an area of

approximately 8800 ha in 7 districts can irrigate an area of 23 600 ha of rice fields in the area Sukoharjo,

Klaten, Karanganyar and Sragen and generated electricity from hydropower plant by 12.4 MegaWatt.


Sub Unit PLTA Wonogiri

Desa Donoharjo, Kec Wongiri

Kab. Wonogiri, Post Box 5

Phone : (62-273) 321 -614

Fax : (62-273) 321 -614

Sub Unit PLTA Wonogiri

Desa Donoharjo, Kec. Wonogiri

Kab. Wonogiri, Kotak Pos 5

Tel. : (62-273) 321-614

Fax. : (62-273) 321-614

No. Unit



1 Ebara Corp Vertical Francis RA 10138-01 Shinko Electric 1982 6.20

2 Ebara Corp Vertical Francis RA 10138-02 Shinko Electric 1982 6.20


5. Ketenger

Ketenger Hydropower plant is located in the village of Ketenger, Baturraden District, Banyumas regency,

Central Java Province, approximately 12 km to the north of Purwokerto.

In the time’s jouney, Ketenger hydropower plant now consists of three engine power plant with a total

capacity of approximately 8.04 MW. The existence of this power plant is under the supervision of PT.

Indonesia Power Generation Business Unit of Mrica in Banjarnegara.


No. Unit



1 Chamilles Geneva Horizontal Pelton 1479 Oerlikon 1939 3.52

2 Chamilles Geneva Horizontal Pelton 1480 Oerlikon 1939 3.52

3 Chamilles Geneva Horizontal Pelton HL 110-WJ-60 AVK German 1999 1.00


6. Sempor

Sempor Reservoir is located 10 kilometers north of Gombong or about 32 kilometers west of Kebumen.

The reservoir is made of several mountain dammed and has a primary function as a reservoir of water

for the farmers in the Kebumen area, especially the west. Irrigation water is delivered through Sempor

Main Canal.

In addition as well as an irrigation Sempor reservoir also as hydro power plant. under normal conditions

Sempor Hydroelectric power plant could produce 1 MW as its capacity.

Sub Unit PLTA Sempor

Jl. Tunjungseto

Kota Kebumen

Central Java

Phone : (62-287) 550-4033

No. Unit



1 C Dumont Horizontal Francis T 4355 Sync Brushless 1980 1.00


7. Garung

Garung is one of the districts in Wonosobo, Central Java, Indonesia. Garung is located to the north of the

city Wonosobo, main street Wonosobo - Dieng.

Menjer reservoirs is located in Central Java Province Wonosobo district was built in the decade of the

60s used to Hydroelectric Power Plant (HEPP). Hydro power plant Capacity is 2 x 13.20 MW


Sub Unit PLTA Garung

Desa Maron, Kec Garung

Kab. Wonosobo, Post Box 9

Central Java

Tel. : (62-286) 321-287

No. Unit



1 Ebara Corp Vertical Francis R 910126-02 C E M 1982 13.20

2 Ebara Corp Vertical Francis R 910126-03 C E M 1982 13.20

8. Wadas Lintang

Wadaslintang hydropower is one hydropower plant located in Wadaslintang districts, Wonosobo

regency, Central Java, Indonesia.

Wadaslintang Hydroelectric power plant has a capacity of 2 x 9 MW (18 MW), by using water in

Wadaslintang reservoirs using Kali Gede as the main water source to several other small tributaries. So

that hydropower operations is very dependent on the condition of water in the reservoir.

Wadaslintang reservoirs located in the southern Wadaslintang districts bordering Prembun districts

Kebumen regency. In the process of its construction, the Wadaslintang dam took a few villages that

requires its citizens to settle in a new place. The process of construction of the dam was done in the

reign of President Suharto in 1992. Reservoir is famous as a favorite location for recreational fishing for

sport fishing enthusiasts. Usually on weekends and holidays, many fishers both from inside and outside

the city who visited this reservoir.


Sub Unit PLTA Wadaslintang

Desa Sendang Dalem, Kec. Prembun

Kab. Kebumen, Post Box 200

Central Java

Phone : (62-82) 281 5676

Fax : (62-82) 281 5676

No. Unit



1 Fuji electric Vertical Francis KU69074HLO-1 Fuji electric 1988 9.00

2 Fuji electric Vertical Francis KU69074HLO-2 Fuji electric 1988 9.00

9. Kedung Ombo

In 1985 the government was planning to build a new reservoir in Central Java to generate 22.50

megawatts of electricity and can hold water for the needs of the surrounding 70 hectares of paddy

fields. The reservoir is named Kedung Ombo. Development Kedung Ombo was financed USD 156 million

from the World Bank, U.S. $ 25.2 million from Exim Bank of Japan, and the state budget, beginning with

the year 1985 until 1989. The reservoir was watered on January 14, 1989. Drown 37 villages, 7 districts

in 3 regencies, namely Sragen, Boyolali, Grobogan. A total of 5268 families lost their land due to

construction of this dams. Kedung Ombo Reservoir is a giant reservoir area of 6576 hectares, the area

includes most areas of the three districts, namely; Sragen, Boyolali, and Grobogan. Reservoir dam

consists of five river waters covering an area of 2830 acres and 3746 acres of land that is not filled with

water.


Sub Unit PLTA Kedung Ombo

Desa Rambat, Kec Geyer

Kab. Grobogan, Post Box 5

Central Java

Phone : (62-24) 747-5602

Fax : (62-24) 747-5602

No. Unit



1 Neyrpic Vertical Kaplan n.a. Alstom 1992 22.50

10. Sidorejo

Location : desa Sidorejo – Boyolali – Central Java

Power Plant Capacity 1.4 MW


No. Unit



1 Neyrpic Semi Kaplan Adj Blade n.a. Alstom 1992 1.40

11. Pejengkolan

Location : ds. Pejengkolan, Kec. Padureso, Kab. Kebumen, Central Java

Power Capacity : 1.40 MW


No. Unit



1 Utostroj Kaplan P 9036 Rebence Electric 1982 1.40

12. Tapen

Location : Ds. Tapen, Kec. Wanadadi, Kab. Banjarnegara

Plant Capacity : 0.75 MW

No. Unit



1 CKD Blansko Vertical Kaplan n.a. AVK Nisenburg 1997 0.75


13. Tulis

Power Plant Capacity : 12.40 MW

Sub Unit PLTA Tulis

Desa Sukaraja, Kec. Pagetan,

Kab. Banjarnegara, Central Java

No. Unit



1 CKD Blansko Francis n.a. n.a. 1996 6.20

2 CKD Blansko Francis n.a. n.a. 1996 6.20


14. Klambu

Located in the village Klambu, district Klambu 11 km southwest adjacent to the Purwodadi city.

Klambu is a large dam reservoirs where the two rivers met the Serang and Lusi rivers and have streams

of channels that comprise the right Klambu irrigates 17,288 hectares of paddy area spanning districts of

Grobogan, Kudus and Pati. Then the left Klambu irrigates the fields covering 21,457 hectares in the

districts of Demak and Kudus, and Klambu Juana through Tambakromo water pump that irrigates the

rice fields spanning an area of 9970 hectares that covers Pati and Rembang regency.

Klambu dam is in addition to paddy irrigation also well for Hydroelectric Power Plant (HEPP) with the

capacity of 1.17 MW and also used for drinking water for the city of Semarang and surrounding

communities which is taken through a pipe in the ground along the 45 kilometers with a water discharge

capacity of 1500 liter / second.

No. Unit



1 Neyrpic Alsthom Kaplan n.a. n.a. 1992 1.17

Sources :

1. http://www.indonesiapower.co.id 2. PLN power plant inventory list 3. http://pltaketenger.blogspot.com/ 4. Other websites

http://www.indonesiapower.co.id/

http://pltaketenger.blogspot.com/

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