Geothermal Utilization ( Geothermal ) As Alternative Energy
Geothermal Utilization ( Geothermal ) As Alternative EnergyIndonesia's geological position is located in an active volcanic path ( ring of fire ) make Indonesia the world awarded with potential mineral and energy resources are relatively abundant one geothermal resources ( Geothermal ) . In language , the word Geothermal comes from two words geo which means earth and thermal means heat . So the term is defined as Geothermal Geothermal . Geothermal energy is defined as heat that is formed naturally under the earth's surface .Of the total potential of geothermal resources globally , 40 % are in Indonesia. Geothermal resources stored in the bowels of the earth , Indonesia is divided into two groups . The first is the geothermal resources within the volcanic track . This geothermal resources since spread from Sumatra , Java , Bali , NTB , NTT , North Sulawesi and North Maluku . The second one is the non- volcanic geothermal resources spread across the island of Bangka - Belitung , West Kalimantan , South Sulawesi , Southeast Sulawesi , Central Sulawesi , Maluku and Papua . Geothermal energy is an alternative energy source that is expected to replace fossil energy sources such as petroleum, diesel and coal in generating electricity .
The government itself long ago , has issued a series of arrangements to encourage improved management of geothermal energy in Indonesia . Starting from the issuance of Decree 74 of 1974 which authorizes operation of geothermal resources to Pertamina . Later this rule was followed by Presidential Decree No. 22/1981 and Presidential Decree No. refinement 45/1991 . In 2000 issued Presidential Decree No. 76/2000 which revoked Pertamina 's monopoly in the exploitation of geothermal energy in Indonesia with private participation opportunities . Most recently, in 2003 issued Law No. 27 of 2003 on Geothermal , followed by the issuance of Government Regulation No. 59 of 2007 on Geothermal Operations . With the publication of this Act , all rules geothermal concession refers to the laws of this and all ordinances . However, for contracts geothermal exploitation of existing ( existing ) whereabouts remain honored until the expiration of the contract . Then in 2006 , the President issued a Presidential Decree . 5 Year 2006 on National Energy Policy which contains strategies to ensure energy security in Indonesia . This policy has been formulated in the energy mix by 2025 is to reduce the consumption of fossil energy and replace it with renewable energy .a. Utilization of geothermal energy in Indonesia
Geothermal energy has the advantage of :
1 . 1 . Sustainable , Earth Heat is a natural resource that can be updated , potentially large , controlled by the state and has an important role as one of the preferred energy source . Unlike other renewable energy , geothermal energy is always available making it suitable as a substitute for coal ;
2 . 2 . Environmentally friendly , geothermal utilization relatively environmentally friendly , mainly because it does not contribute to greenhouse gases ;
3 . 3 . Not affected by fluctuations in oil prices . Utilization of geothermal energy will reduce dependence on fossil fuels that can save oil reserves can save foreign exchange for replacing fossil fuels .
4 . 4 . Does not require storage, transportation , and large tracts of landT.
Currently geothermal field development in Ulubelu , Lampung Province is being done . This field has been successfully drilled twelve (12 ) wells with potential vapor from the test production of 80 MW . Geothermal field development is also being held at Moss Hall ( South Sumatra ) , Full River ( Jambi ) , Hululais ( Bengkulu Province ) , Kotamobagu ( North Sulawesi ) , Karaha ( West Java Province ) .
Even so , the utilization of geothermal energy in Indonesia is not maximized . Of 40 % or about 27,000 MW of 219 million barrels of oil equivalent earth geothermal potential in Indonesia , only 4 % , or about 1,189 MW of which has been utilized energy for power generation with the largest installed capacity is in the region of West Java is equal to 1057 MW ( 20 % of reserves ) , followed by a 60 MW Central Java , North Sulawesi and North Sumatra 60 MW 12 MW . The condition is caused due to several constraints encountered in the form of :1 . 1 . Lack of investment to support the achievement of the target of increasing the utilization of geothermal 2 . Lack of price incentives and mechanisms in accordance with the environmental benefit to invest especially with higher risk in geothermal areas that have not been explored 3 . Limited institutional capacity to plan for the development of geothermal energy and involve the developers 4 . Weak local capacity in the field of resource assessment , equipment manufacture , construction , and maintenance of water mengjalankan and geothermal plants .b . Geothermal utilization in West Sumatra
Lodging in West Sumatra province alone , according to data from the Ministry of Energy and Mineral Resources , Directorate General of Mineral , Coal and Geothermal , potential areas have geothermal resources consist of :NO .
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Against the geothermal potential located in the province of West Sumatra Governor Irwan Prayitno in his speech delivered at the Provincial Coordination Meeting . West Sumatra with the Regent / Mayor in West Sumatra ( 19/07/2011 ) said that it has made efforts to develop geothermal energy by way of promotion , assessment approaches and cooperation with the German investors and the United States , because it takes a very large fee + U.S. $ 3,000,000 per MW . As a result of the visit to Germany at the end of the year , 2010, the Germans through the Bavarian State was ready to help through development cooperation Geothermal Power Plant in West Sumatra province . In order to support the continued cooperation and assistance ( grant , loan , etc. ) from the German for West Sumatera , it takes the form of a thorough review of the Feasibility Study and the support of the Minister / Head of Bappenas .
Further West Sumatra provincial government is also planning the construction of five geothermal power plant package ( geothermal ) for the implementation of the medium -term development of the region ( PJMD ) 2011-2015 . Construction of five geothermal power plant package is financed by the central government funds in the state budget each year . Within five years of implementation will be carried out RPJMD each development package Geothermal power plants each year , so that by the end of 2015 woke up five power generation package .


