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Tradisi Tujuh Bulanan Kehamilan Adat Sunda Ditinjau menurut Hukum Islam: Studi Kasus Desa Karangmuncang Kecamatan Cigandamekar Kabupaten Kuningan Dr Mualim Bin Ahmad; Murniati Murniati; RIna Wahyuningsih
El 'Ailaah Vol 1 No 2 (2022): El 'Aailah: Jurnal Kajian Hukum Keluarga
Publisher : Program Studi Hukum Keluarga (Ahwal Syakhshiyah)

Terdapat sebuah adat istiadat atau tradisi yang telah menjadi kebiasaan ketika seorang istri sedang hamil pada usia kehamilan 7 bulan. Tradisi ini disebut nujuh bulan. Penelitian ini bertujuan untuk mengetahui pelaksanaan yang menyebabkan terjadinya nujuh bulan dan bagaimana tinjuan hukum Islam terhadap tradisi nujuh bulan dalam usia kehamilan 7 bulan yang terjadi di Desa Karangmuncang Kecamatan Cigandamekar Kabupaten Kuningan. Penelitian ini menggunakan metodologi penelitian kualitatif deskriptif. Data yang digunakan yaitu data primer dan data sekunder. Metode pengumpulan data yang digunakan yaitu metode observasi, wawancara, dan dokumentasi. Teknik pengumpulan data menggunakan analisis data deskriptif. Hasil penelitian menunjukan bahwa tinjauan hukum Islam terhadap tradisi nujuh bulan dalam usia kehamilan 7 bulan digunakan sebagai urf’ karena tidak bertentangan dengan dalil Al-Quran dan As-Sunnah, juga syariat Islam. Dan juga karena tradisi ini hanyalah sebuah adat istiadat atau budaya yang ada, atau sebagai simbol dari rasa syukur kepada Allah SWT.

EVALUASI KELAYAKAN PROYEK DAN PERANKINGAN AREA PROSPEK PANAS BUMI KANDIDAT LOKASI PROGRAM GOVERNMENT DRILLING: EVALUATION OF FEASIBILITY AND RANKING OF GEOTHERMAL PROSPECT AREA CANDIDATES FOR GOVERNMENT DRILLING PROGRAM LOCATIONS Nugraha, Husin Setia; Wildan, Dadan; Rina Wahyuningsih
Buletin Sumber Daya Geologi Vol 19 No 2 (2024): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v19i2.431

Government drilling is a geothermal exploration well drilling program carried out by the government. For planning, it is necessary to rank candidate prospect areas to be included in the program. This study ranked twenty candidate drilling sites using the incremental internal rate of return or incremental IRR method from discounted cash flow (DCF) calculations. The stages for the method are calculating project value and feasibility based on profitability parameters in each prospect area and calculating and ranking based on incremental IRR. As a result, based on the value of the profitability parameter, only two candidate areas for the program are feasible based on the project's IRR and NPV values, namely Nage and Mount Galunggung. Meanwhile, based on the BCR value, in addition to those two locations, two prospect areas are categorized as feasible, namely Bittuang and Mount Papandayan. Thus, Nage and Mount Galunggung are financially viable, and Bittuang and Mount Papandayan are economically viable. Improving the financial viability of Bittuang and Gunung Papandayan requires other fiscal incentives. For ranking, the results based on incremental IRR calculations and IRR result in the same order for the top four or the viable projects. The same results are because of their homogeneous project type, which is a geothermal project. Based on the results of this study, it is recommended to re-evaluate candidate prospect area locations for the program. It is because out of twenty candidate locations, only two are financially viable, and four are economically viable. Choosing the right location is one of the keys to the success of this program.

PERKIRAAN POTENSI DAN UTILISASI ENERGI PANAS BUMI UNTUK PEMANFAATAN LANGSUNG DI PROSPEK LELES, CIANJUR, JAWA BARAT: THE POTENTIAL AND UTILIZATION OF GEOTHERMAL ENERGY ASSESSMENT FOR DIRECT UTILIZATION IN THE LELES PROSPECT, CIANJUR, WEST JAWA Nugraha, Husin; Rina Wahyuningsih; Dede Iim; Dadan Wildan
Buletin Sumber Daya Geologi Vol 19 No 3 (2024): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v19i3.483

This research activity aims to estimate the potential and utilization of geothermal energy for direct use in Prospect Leles, Cianjur Regency, by applying technical instructions on calculating the potential and utilization of geothermal energy for direct use. The Leles prospect has eight heat sources for direct utilization of geothermal energy: five hot springs, one hot water drilled well, and two hot water bathing pools. Two pools are categorized as utilized, with the installed capacity of one hot spring with proven reserves. Meanwhile, the remaining five hot springs are still categorized as measurable resources. The total installed capacity of the two hot spring pools is 38.85 kWt with an annual utilization of 1.23 TJoules per year or ~0.34 GWh per year with an estimated capacity factor of 33.3%. With this capacity, the ratio of installed capacity to proven reserves is still very small, only 1.41%. Meanwhile, the total potential of the Leles Prospect is 3.3 MWt with details of proven reserves of 2,592 kWt and measured resources of 704 kWt. The recommendation for direct use is to increase the utilization installation, either in parallel, a pool can be made for swimming, bathing, and a jacuzzi, and in cascading with aquaculture, such as shrimp or catfish.

A NEW FRAMEWORK FOR CLASSIFICATION AND QUANTIFICATION OF GEOTHERMAL DIRECT USE RESOURCES AND RESERVES IN INDONESIA: KERANGKA KERJA BARU UNTUK KLASIFIKASI DAN KUANTIFIKASI SUMBER DAYA DAN CADANGAN PEMANFAATAN LANGSUNG PANAS BUMI DI INDONESIA Husin Setia Nugraha; Husin; Rina Wahyuningsih; Dudi Hermawan; Dikdik Risdianto
Buletin Sumber Daya Geologi Vol 20 No 2 (2025): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v20i2.447

Geothermal direct use (GDU) in Indonesia holds significant potential for supporting energy security and local economic development, yet its growth has been hindered by the absence of technical standards for potential assessment. In contrast to the well-established indirect use for electricity generation, officially recorded GDU potential remains minimal. This study aims to establish and apply a standardized framework for the classification and quantification of GDU potential and utilization in Indonesia. The developed methodology introduces a potential classification system based on two primary criteria: the quality of fluid data/information and the results of a reserve feasibility study. The potential is categorized into two main classes: Resources (Indicated, Measured) and Reserves (Probable, Proven). Quantification formulas for potential (in MWt) and utilization (installed capacity, capacity factor, annual utilization, and capacity-to-reserve ratio) are also formulated. The initial implementation of this methodology reveals that Indonesia possesses a GDU potential of at least 230 MWt from 201 inventoried prospects, which constitutes approximately 56% of all identified prospects. Of this amount, approximately 8.1 MWt has been successfully classified as Proven Reserves. This standardized framework is expected to serve as a credible national reference for resource inventory, development planning, and attracting investment in the geothermal direct use sector.

REKOMENDASI AREA LOKASI TAPAK SUMUR EKSPLORASI PANAS BUMI MENGGUNAKAN PEMODELAN SISTEM INFORMASI GEOGRAFIS DI DAERAH PROSPEK CISOLOK-CISUKARAME, SUKABUMI, JAWA BARAT: RECCOMENDATION FOR GEOTHERMAL EXPLORATION WELLPAD AREA USING GEOGRAPHIC INFORMATION SYSTEM MODELING IN CISOLOK-CISUKARAME PROSPECT, SUKABUMI, WEST JAVA Husin Setia Nugraha; Dadan Wildan; Rina Wahyuningsih; Reynold Tampubolon
Buletin Sumber Daya Geologi Vol 18 No 3 (2023): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v18i3.420

The use of Geographic Information System (GIS) modelling in developing geothermal resources has been widely carried out, from the initial survey and exploration to exploitation or production stages. This GIS modelling aims to delineate specific locations that are considered to have geothermal resources or are suitable for geothermal field production facilities. This study aims to obtain a map of the recommended wellpad area for the optimal geothermal exploration well drilling location by considering technical and non-technical parameters. This research was conducted in the Cisolok-Cisukarame geothermal prospect area in Sukabumi Regency, West Java Province. The map is produced by integrating eight parameters that will affect the amount of drilling costs: prospect area, slope, reservoir crest depth area, geological structure, water source, access road, settlement area, surface manifestation area, and cultural heritage area. In the early stages, buffer areas and classifications were made for these parameters with a specific range of values based on several considerations. Furthermore, spatial data integration is carried out using vector overlaying boolean operations. The result is a map of the wellpad recommendation area for geothermal exploration wells in the Cisolok-Cisukarame area, with an area of approximately 6.31 km2 (19.62% of the P90 prospect area). Using a 120-meter fishnet produces eight large cluster areas and five small cluster areas, which are suitable for wellpad of standard hole. Meanwhile, the 50-meter fishnet produces the same number of clusters and five other smaller clusters. The results of this study can be used as recommendations for areas to be used as well as footprint locations and planning for further field survey activities such as geotechnical and infrastructure surveys.

EVALUASI KELAYAKAN PROYEK DAN PERANKINGAN AREA PROSPEK PANAS BUMI KANDIDAT LOKASI PROGRAM GOVERNMENT DRILLING: EVALUATION OF FEASIBILITY AND RANKING OF GEOTHERMAL PROSPECT AREA CANDIDATES FOR GOVERNMENT DRILLING PROGRAM LOCATIONS Nugraha, Husin Setia; Wildan, Dadan; Rina Wahyuningsih
Buletin Sumber Daya Geologi Vol 19 No 2 (2024): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v19i2.431

Government drilling is a geothermal exploration well drilling program carried out by the government. For planning, it is necessary to rank candidate prospect areas to be included in the program. This study ranked twenty candidate drilling sites using the incremental internal rate of return or incremental IRR method from discounted cash flow (DCF) calculations. The stages for the method are calculating project value and feasibility based on profitability parameters in each prospect area and calculating and ranking based on incremental IRR. As a result, based on the value of the profitability parameter, only two candidate areas for the program are feasible based on the project's IRR and NPV values, namely Nage and Mount Galunggung. Meanwhile, based on the BCR value, in addition to those two locations, two prospect areas are categorized as feasible, namely Bittuang and Mount Papandayan. Thus, Nage and Mount Galunggung are financially viable, and Bittuang and Mount Papandayan are economically viable. Improving the financial viability of Bittuang and Gunung Papandayan requires other fiscal incentives. For ranking, the results based on incremental IRR calculations and IRR result in the same order for the top four or the viable projects. The same results are because of their homogeneous project type, which is a geothermal project. Based on the results of this study, it is recommended to re-evaluate candidate prospect area locations for the program. It is because out of twenty candidate locations, only two are financially viable, and four are economically viable. Choosing the right location is one of the keys to the success of this program.

PERKIRAAN POTENSI DAN UTILISASI ENERGI PANAS BUMI UNTUK PEMANFAATAN LANGSUNG DI PROSPEK LELES, CIANJUR, JAWA BARAT: THE POTENTIAL AND UTILIZATION OF GEOTHERMAL ENERGY ASSESSMENT FOR DIRECT UTILIZATION IN THE LELES PROSPECT, CIANJUR, WEST JAWA Nugraha, Husin; Rina Wahyuningsih; Dede Iim; Dadan Wildan
Buletin Sumber Daya Geologi Vol 19 No 3 (2024): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v19i3.483

This research activity aims to estimate the potential and utilization of geothermal energy for direct use in Prospect Leles, Cianjur Regency, by applying technical instructions on calculating the potential and utilization of geothermal energy for direct use. The Leles prospect has eight heat sources for direct utilization of geothermal energy: five hot springs, one hot water drilled well, and two hot water bathing pools. Two pools are categorized as utilized, with the installed capacity of one hot spring with proven reserves. Meanwhile, the remaining five hot springs are still categorized as measurable resources. The total installed capacity of the two hot spring pools is 38.85 kWt with an annual utilization of 1.23 TJoules per year or ~0.34 GWh per year with an estimated capacity factor of 33.3%. With this capacity, the ratio of installed capacity to proven reserves is still very small, only 1.41%. Meanwhile, the total potential of the Leles Prospect is 3.3 MWt with details of proven reserves of 2,592 kWt and measured resources of 704 kWt. The recommendation for direct use is to increase the utilization installation, either in parallel, a pool can be made for swimming, bathing, and a jacuzzi, and in cascading with aquaculture, such as shrimp or catfish.

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