scholarly journals Analysis of Potential and Feasibility of Hydropower Energy from Sepaku Semoi Dam in Penajam Paser Utara Regency

2021 ◽  
Vol 927 (1) ◽  
pp. 012016
Author(s):  
Faruq Nashrulloh ◽  
Muhammad Sulaiman ◽  
Rachmawan Budiarto
Keyword(s):  
Renewable Energy ◽  
Net Present Value ◽  
Payback Period ◽  
Total Potential ◽  
Digital Elevation ◽  
Data History ◽  
The Government ◽  
Technical Planning ◽  
Elevation Model ◽  
Continuous Power

Abstract This paper will present a techno-economic potential and feasibility analysis in the planning of renewable hydropower energy from Sepaku Semoi Dam in Penajam Paser Utara (PPU) Regency. The dam was planned to be built to support the water needs of Indonesia’s prospective capital. The analysis was done based on the last twenty years’ rainfall intensity data history from Sepaku rain station and Sepinggan rain station and digital elevation model (DEM) from DEMNAS with support of the river basin agency of Kalimantan Timur. The result of dependable discharge calculation of Sepaku Semoi river using FJ Mock Method is 2.45 m/s2. And the head of the hydropower power plant is 15.85 meters. The total potential electricity generated from hydropower reached 2,593,140 kWh/year. The assessment of feasibility indicators in this research took into account the technology and economic aspects. The technology aspects help evaluate the technical planning of installations that are possible to build in the dam. The economic aspect of feasibility evaluates the net present value (NPV), internal rate of return (IRR), and the payback period of renewable energy installation. This analysis aimed to get a comprehensive insight from the potential hydropower energy that exists at the research locations and conduct a feasibility study based on techno-economic analysis to develop renewable energy. The results showed that 15.85 meters had the most significant potential of hydropower by generating 290 kW continuous power with a feed-in tariff of 0.054 USD/kWh. The electricity was feasible to offer to the government electrical company. Moreover, this project had a payback period of 8 years, and NPV of 64,005 USD, and an IRR Project of 11.86%.

Potential and Feasibility Analysis of Biomass Energy from Palm Oil Mills on North Penajam Paser Regency Region

2021 ◽  
Vol 104 ◽  
pp. 73-82
Author(s):  
Faruq Nashrulloh ◽  
Muhammad Sulaiman ◽  
Rachmawan Budiarto
Keyword(s):  
Renewable Energy ◽  
Palm Oil ◽  
Net Present Value ◽  
Biomass Energy ◽  
Feasibility Analysis ◽  
The North ◽  
Total Potential ◽  
The Government ◽  
Technical Planning ◽  
Private Investors

This paper would present a techno-economic potential and feasibility analysis in the planning of renewable energy from palm oil mills on the North Penajam Paser Regency. The analysis was done based on the last three-year production data history of 7 (seven) palm oil processing factories in the region. The total fresh fruit bunches processed were about 891.624 tons/year. The total potential electricity generated from palm oil residue reached 28.009 kWh. This analysis aimed to get a comprehensive insight from the potential biomass energy that exists at the research locations and conduct a feasibility study based on techno-economic analysis to develop renewable energy of new state capital Indonesia and the supporting regions. The technology helps evaluate the technical planning of installations that are possible to build in the area. The economic aspect of sustainability evaluates the net present value (NPV), internal rate of return (IRR), and the payback period of renewable energy installation. The results showed that North Penajam Paser Regency could generate 78,927,223 kWh in a year with a feed-in tariffs is 1,223.481 IDR/kWh. The electricity was feasible to offer to the government electrical company. Moreover, this project had a good NPV and IRR for private investors.

Quality Assessment of Globally Available Digital Elevation Model (DEM) for Mountainous Region

2021 ◽  
Vol 5 (1) ◽  
pp. 11-21
Author(s):  
Sangay Gyeltshen ◽  
Krisha Kumar Subedi ◽  
Laylo Zaridinova Kamoliddinovna ◽  
Jigme Tenzin
Keyword(s):  
Digital Elevation Model ◽  
Vertical Displacement ◽  
Satellite System ◽  
Topographic Map ◽  
Alos Palsar ◽  
Aster Gdem ◽  
Digital Elevation ◽  
The Government ◽  
Elevation Model ◽  
The Individual

The study assessed the accuracies of globally available Digital Elevation Models (DEM’s) i.e., SRTM v3, ASTER GDEM v2 and ALOS PALSAR DEM with respect to Topo-DEM derived from topographic map of 5m contour interval. 100 ground control points of the elevation data were collected with the help of kinematic hand held GNSS (Global Navigation Satellite System), randomly distributed over the study area. The widely used RMSE statistic, NCC correlation and sub-pixel-based approach were applied to evaluate the erroneous, correlation, horizontal and vertical displacement in terms of pixels for the individual Digital Elevation Model. Following these evaluations, SRTM DEM was found to be highly accurate in terms of RMSE and displacement compared to other DEMs. This study is intended to provide the researchers, GIS specialists and the government agencies dealing with remote sensing and GIS, a basic clue on accuracy of the DEMs so that the best model can be selected for application on various purposes of the similar region.

scholarly journals Studi Kelayakan Ekonomis Rencana Pembangunan Pelabuhan Sungai Liong Desa Berancah Kabupaten Bengkalis

2019 ◽  
Vol 3 (2) ◽  
pp. 146
Author(s):  
Nur Rahmani ◽  
Akmal Lazuardy
Keyword(s):  
Net Present Value ◽  
Payback Period ◽  
Economic Feasibility ◽  
Rate Of Return ◽  
Cost Ratio ◽  
Internal Rate Of Return ◽  
Benefit Analysis ◽  
Present Value ◽  
The Government ◽  
The Cost

The fish shelter port (TPI) is a need that needs to be prepared by local village officials and the government for every coastal village in Bengkalis Regency. This research was conducted in the Berancah village of Bantan District. The analysis in this study describes the economic feasibility mathematically for the construction of a fish storage port (TPI) by calculating the cost ratio (B / C ratio) benefit analysis, payback period (PP), net present value (NPV), and internal rate of return ( IRR). The results obtained from the NPV value (3,661,267,645), BCR value (0.943), IRR value of 10.01%, and PP are in the period of 30 years. Taken as a whole by standardizing the calculations, it can be concluded that the planned construction of a fish shelter in Berancah village is considered not economically feasible, but economic analysis is not merely a benchmark for feasibility, reviewed for the future many benefits will be received by the community around the location of the development plan so that it can improve the welfare of the community in Berancah village.

scholarly journals Revitalization of property asset on the Dumilah Waterpark through the infill development of new activities

2021 ◽  
Vol 778 (1) ◽  
pp. 012005
Author(s):  
E B Santoso ◽  
V K Siswanto ◽  
U Sulistyandari
Keyword(s):  
Net Present Value ◽  
Regional Scale ◽  
Payback Period ◽  
City Government ◽  
Internal Rate Of Return ◽  
Present Value ◽  
Infill Development ◽  
Financial Feasibility ◽  
The Government ◽  
The City

Abstract Property assets owned by the city government should provide high benefits as a source of regional income. The asset is aging so that its productivity will decrease. The government is trying to revitalize assets to make them more productive. The purpose of this study is to determine the best utilization that can provide the highest benefit. The method used to assess the development of these assets is through the high best use approach. Several alternatives to the use of assets compared with the analysis of financial feasibility include the calculation of IRR, NPV, PP, ROI. The utilization of property assets that is more profitable for landowners, based on the results of the FGDs that have been carried out there is an opportunity to build a supporting facility for the development of Dumilah Water Park as a Hotel and Convention Hall. Both of these facilities have considerable economic appeal to support the function of the city of Madiun as a center for trade and services on a regional scale. Based on the calculation of financial feasibility at Dumilah Water Park with an initial investment amount of Rp. 60,354,000,000.00 then the Net Present Value is obtained of Rp. 6,258,119. Likewise, the Internal Rate of Return was obtained at 11.41%, greater than the 10% interest rate. Meanwhile, the Payback Period of this investment is 8 years with an ROI of 10%.

scholarly journals Use of Digital Elevation Models to Map Out The Groundwater Resources Base Of Kuje Area to Federal Capital Territory, Abuja, Nigeria

2021 ◽  
Vol 25 (7) ◽  
pp. 1207-1212
Author(s):  
J.O. Mephors ◽  
C.O. Ogunmuyiwa ◽  
O.S. Afolabi ◽  
C.F. Agbor ◽  
O.M. Ogoliegbune ◽  
...  
Keyword(s):  
Ground Water ◽  
Sea Level ◽  
Digital Elevation Models ◽  
Groundwater Resources ◽  
Research Work ◽  
Groundwater Potential ◽  
Topographic Maps ◽  
Digital Elevation ◽  
The Government ◽  
Elevation Model

This research work examined the use of digital elevation model in the evaluation of groundwater resources in Kuje Area, Nigeria. This was achieved through the acquisition of topographic maps, Digitization of the topographic maps which were glued and interpolated to generate Digital Elevation Models (DEM) and Mapping of groundwater potential areas using ArcGIS 9.2 and ArcView 3.2a software. Findings from this research show that the study area have elevations ranging from 333 m to 429 m above sea level with a moderate groundwater potential in areas with elevation ranging from 286 m and 333 m above sea level. Some areas also have ground water problem, these areas were classified as mountainous areas and are located at very high elevations. The rocky nature of the high elevated environment makes these areas have very little hope of assessing groundwater. It was suggested that government should properly monitor groundwater, inhabitants should be made to accept laws which will help them in the conservation of ground water resources and efforts should also be made by the government towards creating incentives that will encourage people to obey these laws, Conservation methods such as retardation of surface runoff, control of vegetation and groundwater withdrawal rates should be employed.

scholarly journals HYDRO-METEOROLOGICAL ASPECTS OF THE 2021 SOUTH KALIMANTAN FLOOD: TOPOGRAPHY, TIDES, AND PRECIPITATION

2021 ◽  
Vol 18 (1) ◽  
pp. 73
Author(s):  
Munawir Bintang Pratama ◽  
Rafida Multazima ◽  
Ismail Naufal Azkiarizqi
Keyword(s):  
Daily Precipitation ◽  
Spring Tide ◽  
Remote Sensing Data ◽  
Precipitation Anomaly ◽  
Flood Risk Management ◽  
Meteorological Conditions ◽  
Digital Elevation ◽  
Main Driver ◽  
The Government ◽  
Elevation Model

The 2021 South Kalimantan flood was recorded as the most serious ever to have taken place in the province. It occurred due to high-intensity rain during the period 10-19 January, accompanied by a spring tide. This study provides an overview of the disaster, with reference to the hydro-meteorological conditions (topography, tides, and precipitation). The method used was the analysis of the precipitation and its monthly rainfall pattern anomalies using remote sensing data. A Digital Elevation Model (DEM) was also analyzed to indicate the most noticeably flood-affected area. In certain areas, total precipitation during the ten days reached 672.8 mm, with daily precipitation peaking at 255 mm on January 14, greater than the 25-year return period value. The flood coincided with a spring tide, which peaked at 1.21 m on the evening of January 15. Using 20- year GPM data, it was found that ENSO and IOD coexisted with both the highest and lowest anomalies. With a La Niña event at the end of 2020,  a positive precipitation anomaly in 2021 was expected. The extreme precipitation is suspected to be the main driver of the  2021 South Kalimantan flood, whose impact was worsened by the spring tides. This  study conducts further research on the correlation between land-use change, rainfall, spring tide and flooding in South Kalimantan. In addition, it is recommended that the government plan flood risk  management by prioritizing areas based on vulnerability to climate hazards.

scholarly journals Dimensionless Geomorphometry and Discharge in the Ikpa River Basin, Nigeria

2018 ◽  
pp. 1-13
Author(s):  
Ikpong Sunday Umo ◽  
M. C. Ike ◽  
Ifeanyi G. Ukwe
Keyword(s):  
River Basin ◽  
Graphical Analysis ◽  
Elongation Ratio ◽  
Watershed Development ◽  
Digital Elevation ◽  
Geospatial Tools ◽  
The Government ◽  
Elevation Model ◽  
Basin Area ◽  
Geomorphometric Parameters

This study evaluates the relationships between dimensionless basin geomorphometry and discharge in the Ikpa River. The basin was stratified into seven sub-units using [1] scheme. Geospatial tools were used in generating data for the digital elevation model, while dimensionless geomorphometric parameters were generated from topographic maps (sheet 322 NE; sheet 322 SE; sheet 323 SW; and sheet 331 NW) of the basin area drawn on a scale of 1.50,000. The sampled sub-basins were gauged and discharge measured by a surface float. Graphical analysis of discharge revealed wide variations between months and in seasons across sub-basins with the rainy season attracting highest volume of discharge and the corresponding fluvial processes. The regression analysis yields a coefficient of multiple determination (R) of 0.937, signifying a very high effect expressed by 87.8 of the proportion of variance in dimensionless geomorphometric parameters on discharge in Ikpa River Basin. Also, the computed F value yields 1.439, while the Table value tested at (0.05)5/2 confident level offers 19.30. The result led to the conclusion that variations in relief ratio, average bifurcation ratio, circularity ratio, elongation ratio and form factor have a significant effect on discharge in Ikpa River Basin. This paper recommends for prompt installations of state of the art river gauging and monitoring facilities to provide the needed information to the government, researchers, and individuals for the sustainable land and watershed development options (dam and irrigation) in the coastal plain of Ikpa River basin.  

scholarly journals Economic Assessment of Solar Photovoltaics Use in Agricultural Greenhouses in Greece

2018 ◽  
Vol 6 (4) ◽  
pp. 23 ◽  
Author(s):  
John Vourdoubas
Keyword(s):  
Agricultural Sector ◽  
Net Present Value ◽  
Renewable Energy Sources ◽  
Economic Assessment ◽  
Economic Incentives ◽  
Payback Period ◽  
Environmental Benefits ◽  
Solar Photovoltaics ◽  
Net Metering ◽  
The Government

Modern greenhouses can utilize renewable energy sources for covering their energy requirements and reducing their carbon footprint. Solar photovoltaics use for power generation is currently a reliable and cost-effective technology which is used in many applications. The purpose of the current work is to investigate the possibility of using solar photovoltaics in agricultural greenhouses in Greece and to assess their profitability compared with the profitability of their use in households. Semi-transparent and opaque photovoltaic cells can be used for electricity generation with the net-metering regulations covering all their annual electricity needs. Existing studies in various countries concerning their use in greenhouses have reported a payback period of the investments of 4-10 years. In Greece the cost of electricity in the agricultural sector is subsidized while economic incentives are offered regarding the use of this technology in greenhouses. Economic assessment of the investment of solar photovoltaics in greenhouses for a period of 25 years in Greece indicates payback periods of 7.2 and 14.4 years, depending on capital subsidies obtained, while positive net present values are achieved. Their use in households in Greece has a payback period of 10.4 years while the net present value is also positive. The current study indicates that the use of solar photovoltaics in modern greenhouses in Greece supported financially by the government according to the net-metering regulations is profitable, offering economic and environmental benefits to the farmers.

scholarly journals Landslide site delineation from geometric signatures derived with the Hilbert–Huang transform for cases in Southern Taiwan

2020 ◽  
Vol 12 (1) ◽  
pp. 928-945
Author(s):  
Shun-Hsing Yang ◽  
Jyh-Jong Liao ◽  
Yi-Wen Pan ◽  
Peter Tian-Yuan Shih
Keyword(s):  
Large Scale ◽  
Global Climate ◽  
Terrain Analysis ◽  
Hilbert Huang Transform ◽  
Analysis Process ◽  
Digital Elevation ◽  
Main Scarp ◽  
Southern Taiwan ◽  
The Government ◽  
Elevation Model

AbstractLandslides are a frequently occurring threat to human settlements. Along with global climate change, the occurrence of landslides is the forecast to be even more frequent than before. Among numerous factors, topography has been identified as a correlated subject and from which hillslope landslide-prone areas could be analyzed. Geometric signatures, including statistical descriptors, topographic grains, etc., provide an analytical way to quantify terrain. Various published literature, fast Fourier transform, fractals, wavelets, and other mathematical tools were applied for this parameterization. This study adopts the Hilbert–Huang transform (HHT) method to identify the geomorphological features of a landslide from topographic profiles. The sites of the study are four “large-scale potential landslide areas” registered in the government database located in Meinong, Shanlin, and Jiasian in southern Taiwan. The topographic mapping was conducted with an airborne light detection and ranging instrument. The resolution of the digital elevation model is 1 m. Each topographic profile was decomposed into a number of intrinsic mode function (IMF) components. Terrain characterization was then performed with the spectrum resulting from IMF decomposition. This research found that the features of landslides, including main scarp-head, minor scarp, gully, and flank, have strong correspondence to the features in the IMF spectrum, mainly from the first and the second IMF components. The geometric signatures derived with HHT could contribute to the delineation of the landslide area in addition to other signatures in the terrain analysis process.

scholarly journals Producing a Digital Hydrographic Map Aiming at Renewable Energy Potential Mapping of Lesotho

2020 ◽  
Vol 10 (1) ◽  
pp. 61-68
Author(s):  
Francesco Pasanisi ◽  
Sergio Grauso ◽  
Carlo Tebano ◽  
Mabafokeng Mahahabisa ◽  
Muso Raliselo
Keyword(s):  
Renewable Energy ◽  
Satellite Images ◽  
Energy Potential ◽  
Hydrological Data ◽  
Digital Elevation ◽  
Catchment Areas ◽  
Potential Mapping ◽  
Gis Environment ◽  
Elevation Model ◽  
Hydrographic Network

AbstractSome of the first outcomes of a project aiming at mapping the renewable energy potential in Lesotho are hereby presented. In particular, the present paper deals with the task of the project devoted to produce a digital hydrographic map of Lesotho and an associated geographic database. Different geographical, meteorological and hydrological data were collected in the first steps of the project. The hydrographic network was derived in vector format from a digital elevation model of Lesotho using geoprocessing tools in GIS environment. Results were compared with existing cartography and satellite images. Moreover, a methodology proposed in literature for the assessment of the theoretical maximum hydroelectric producibility at watershed level in Italy was applied to one of the main catchment areas of Lesotho. The activities planned to fulfil the objectives of the project are finally outlined.

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