Improving the Financial Performance of Concentrating Solar Thermal Power

2014 ◽  
Author(s):  
Andrew C. Beath ◽  
Brian Webby ◽  
Mehdi Aghaei Meybodi
Keyword(s):  
Cost Reduction ◽  
Financial Analysis ◽  
Negative Impact ◽  
Investment Decision ◽  
Thermal Power ◽  
Solar Thermal ◽  
Electricity Production ◽  
Cost Estimates ◽  
Electricity Cost ◽  
Investment Decision Making

Commercial-scale implementation of concentrating solar thermal (CST) technologies for electricity generation has been increasing worldwide, but technology assessments produced by engineering consultancies typically indicate that electricity production using CST is more expensive than most other renewable energy technologies. A review of a selection of costing studies that have been prepared in recent years for Australian government and industry bodies suggests that electricity cost estimates for CST technologies are exaggerated by a combination of high capital cost estimates and the financial analysis methods used. The results of these assessments are often used in investment decision-making processes of industry and government bodies, so this may have a negative impact on further development of CST technologies. While it is apparent that revision of the methods used in these analyses could improve the apparent cost effectiveness of CST, it is also apparent that the competitiveness of CST technologies needs to be improved through cost reduction and generation improvement. One major driver for this is that some CST technologies have the capability to efficiently store energy in thermal form for electricity production on demand and this could have significant benefits to both specific users and to the general electricity network stability. As a stage in identifying potential targets for new research that will improve competitiveness of CST technologies, a sensitivity analysis was performed to examine the influence of a broad range of factors on the cost of electricity using combined performance modeling and financial analysis. This largely reconfirms the commonly held view that reduction of solar collector costs is a critical target, but also identifies the importance of improving the performance of the overall power generation cycle and general cost reduction throughout the plants.

scholarly journals Disclosure of Risk Factors on Prospectus and Initial Public Offerings (IPO) Performance: Evidence from Indonesia

2020 ◽  
Vol 15 (1) ◽  
pp. 15
Author(s):  
Randy Kuswanto
Keyword(s):  
Initial Public Offerings ◽  
Negative Impact ◽  
Stock Exchange ◽  
Investment Decision ◽  
Ordinary Least Squares ◽  
Risk Information ◽  
Risk Disclosure ◽  
Public Offerings ◽  
Qualitative And Quantitative ◽  
Investment Decision Making

The purpose of this study is to investigate how risk information disclosed in prospectus influences the initial returns of initial public offerings (IPOs) in Indonesia. This study collected 62 sample IPOs offered in the Indonesian Stock Exchange from 2017–2018. Ordinary least squares was performed to test the association between risk disclosure and initial returns. Results indicate that prospectus provides risk information associated with initial returns. Both qualitative and quantitative dimensions have a significant negative impact on the initial returns. It can be concluded that risk information has an important role in the underpricing phenomenon. The study has extended the available literature by investigating risk disclosure from a dual perspective. Moreover, qualitative and quantitative assessments both have a direct impact on the initial returns and must be considered in investment decision making. Keywords: Risk, IPO, underpricing, initial returns

An analytical optimization of thermal energy storage for electricity cost reduction in solar thermal electric plants

2017 ◽  
Vol 185 ◽  
pp. 531-546 ◽  
Author(s):  
Luis F. González-Portillo ◽  
Javier Muñoz-Antón ◽  
José M. Martínez-Val
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Cost Reduction ◽  
Solar Thermal ◽  
Electricity Cost

Economic Potential of Solar Thermal Power Plants With Direct Steam Generation Compared With HTF Plants

2010 ◽  
Vol 132 (4) ◽  
Author(s):  
Jan Fabian Feldhoff ◽  
Daniel Benitez ◽  
Markus Eck ◽  
Klaus-Jürgen Riffelmann
Keyword(s):  
Thermal Power ◽  
Solar Thermal ◽  
Live Steam ◽  
Steam Generation ◽  
Parabolic Trough ◽  
Electricity Cost ◽  
Solar Thermal Power ◽  
Technical Report ◽  
Hourly Data ◽  
Direct Steam

The direct steam generation (DSG) in parabolic trough collectors is a promising option to improve the mature parabolic trough solar thermal power plant technology of the solar energy generating systems (SEGS) in California. According to previous studies [Langenkamp, 1998, “Revised LEC Projections and Discussion of Different DSG Benefits,” Technical Report No. DISS-SC-QA-02, Almeria, Spain; Price, et al., 2002, “Advances in Parabolic Trough Solar Power Technology,” ASME J. Sol. Energy Eng., 124(2), pp. 109–125; Zarza, E., 2002, “DISS Phase II Final Report,” Technical Report EU Contract No. JOR3-CT98-0277, Almeria, Spain], the cost reduction in the DSG process compared with the SEGS technology is expected to be 8–25%. All these studies were more or less preliminary since they lacked detailed information on the design of collector fields, absorber tubes required for steam temperatures higher than 400°C, and power blocks adapted to the specific needs of the direct steam generation. Power blocks and collector fields were designed for four different capacities (5 MWel, 10 MWel, 50 MWel, and 100 MWel) and different live steam parameters. The live steam temperature was varied between saturation temperature and 500°C and live steam pressures of 40 bars, 64 bars, and 100 bars were investigated. To assess the different cases, detailed yield analyses of the overall system were performed using hourly data for the direct normal irradiation and the ambient temperature for typical years. Based on these results, the levelized costs of electricity were determined for all cases and compared with a reference system using synthetic oil as heat transfer fluid. This paper focuses on two main project findings. First, the 50 MWel DSG system parameter comparisons are presented. Second, the detailed comparison between a DSG and a SEGS-like 100 MWel system is given. The main result of the investigation is that the benefit of the DSG process depends on the project site and can reach an 11% reduction in the levelized electricity cost.

scholarly journals ANALISIS INFORMASI KEUANGAN KOPERASI SYARIAH NURI (KSN) JAWA TIMUR SEBAGAI ALAT PENGAMBILAN KEPUTUSAN INVESTASI

2019 ◽  
Vol 3 (1) ◽  
pp. 82-100
Author(s):  
Devi Lestari Pramita Putri ◽  
Wahyu Maulana
Keyword(s):  
Decision Making ◽  
Quantitative Research ◽  
Financial Analysis ◽  
Investment Decision ◽  
Sampling Technique ◽  
Financial Statements ◽  
Financial Information ◽  
Economic Conditions ◽  
Investment Decision Making ◽  
Decision Making Tool

Nowadays, economic conditions in Indonesia are unstable, with the result that it is needed to look for the information from certain or credible sources. Especially in financial information because of that, it is very influential to those who play an important role in policymakers. Besides, the precise financial information is also needed by the investors and creditors who are used as a basis for consideration to make profitable investments or vice versa. The objective of this study is to find out the financial information as an investment decision-making tool and to find out the level of health of cooperatives in the financial sector as financial information to investors and creditors. Then, the object of this study is Koperasi Syariah Nuri in East Java. This study employed descriptive quantitative research. The sampling technique is purposive sampling. The data sample used is in the form of financial statements from 2015 to 2017. Based on the data analysis, the results show us that: capital ratio in healthy criteria, cash ratio in liquid criteria, ROA insufficient criteria, ROE insufficient criteria, Fewer criteria generated by the service operational independence ratio. Keywords : Financial information, Financial analysis, and Investment decision

scholarly journals AN ENHANCED TECHNO-ECONOMIC ANALYSIS OF LCOE: PUBLIC INCENTIVES VS PRIVATE INVESTMENT

2020 ◽  
Vol 0 (0) ◽  
pp. 1-23
Author(s):  
Rogelio Peón Menéndez ◽  
Alejandro Parra Martín ◽  
Laura Varela-Candamio ◽  
María-Teresa García-Álvarez
Keyword(s):  
Investment Decision ◽  
Private Investment ◽  
Scientific Basis ◽  
Electricity Production ◽  
New Approach ◽  
Investment Decision Making ◽  
Cost Of Energy ◽  
Technological Developments ◽  
Dominant Market Position

This paper offers a new approach for the estimation of levelized cost of energy (LCOE) by considering the shareholder internal rate of return (IRR) as an unexplored measure in this kind of analysis. The study relies on a comprehensive techno-economic evaluation based on interactions among a set of factors. This mathematical model is then empirically tested for a CSP power plant in Extremadura (Spain) due to their dominant market position and also for being the most developed renewable system at the present. A sensitivity analysis is also performed to establish the influence that market conditions have on the determination of LCOE for different scenarios under the maintenance of a given shareholder IRR for investors. This last assumption makes investment decisions indifferent among several projects in order to focus solely on the minimization of the LCOE. Results reveal that while the annual net electricity production contributes to the reduction of LCOE, total investments, equity percentage and operation and maintenance (O&M) costs help to increase their value by a high percentage. This study gives important scientific basis for investment decision making and also becomes a standpoint to design suitable public incentives that may enhance future technological developments in the CSP generation industry.

Economic Potential of Solar Thermal Power Plants With Direct Steam Generation Compared to HTF Plants

2009 ◽  
Author(s):  
Jan Fabian Feldhoff ◽  
Daniel Benitez ◽  
Markus Eck ◽  
Klaus-Ju¨rgen Riffelmann
Keyword(s):  
Thermal Power ◽  
Saturation Temperature ◽  
Solar Thermal ◽  
Live Steam ◽  
Steam Generation ◽  
Parabolic Trough ◽  
Electricity Cost ◽  
Solar Thermal Power ◽  
Hourly Data ◽  
Direct Steam

The direct steam generation (DSG) in parabolic trough collectors is a promising option to improve the mature parabolic trough solar thermal power plant technology of the Solar Energy Generating Systems (SEGS) in California. According to previous studies [1–3], the cost reduction of the DSG process compared to the SEGS technology is expected to be 8 to 25%. All these studies were more or less preliminary since they lacked detailed information on the design of collector fields, absorber tubes required for steam temperatures higher than 400°C and power blocks adapted to the specific needs of the direct steam generation. To bridge this gap, a detailed system analysis was performed within the German R&D project DIVA. Power blocks and collector fields were designed for four different capacities (5, 10, 50 and 100 MWel) and different live steam parameters. The live steam temperature was varied between saturation temperature and 500°C, and live steam pressures of 40, 64 and 100 bar were investigated. To assess the different cases, detailed yield analyses of the overall system were performed using hourly data for the direct normal irradiation and the ambient temperature for typical years. Based on these results the levelized costs of electricity were determined for all cases and compared to a reference system using synthetic oil as heat transfer fluid (HTF). This paper focuses on two main project findings. First, the 50 MWel DSG system parameter comparisons are presented. Second, the detailed comparison between a DSG and a SEGS-like 100 MWel system is given. The main result of the investigation is that the benefit of the DSG process depends on the project site and can reach an 11% reduction of the levelized electricity cost (LEC).

Economic Analysis of Solar Trough, Tower and Dish Power Plants

2013 ◽  
Vol 805-806 ◽  
pp. 12-16
Author(s):  
Yong Sheng Hu ◽  
Qin Yan ◽  
Yong Ping Yang
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Gansu Province ◽  
Solar Thermal ◽  
Technology Choice ◽  
Climate Condition ◽  
Parabolic Trough ◽  
Electricity Cost ◽  
Solar Thermal Power ◽  
Thermal Power System

Solar thermal power system can be classified to three typical kinds, parabolic trough, tower and dish system. Trough and tower systems have been commercial operated in last few years. Solar dish power plant is also in demonstrational phase. But how to choose a fit technology road is also a different challenge. In the paper, three solar thermal power plants are analyzed, located in same location in Gansu province. Three power plants electricity loads and total investments in same capacity and collector area are calculated to analyze the economic characters by Levelised Electricity Cost (LEC) method. Finally, three power plants LEC distributions are also analyzed in the conditions of different loan interests and life span. The results indicate that the minimum LEC is tower in current market conditions. The research results can be used to support technology choice, and design optimization in specific climate condition.

scholarly journals Study of Using Solar Thermal Power for the Margarine Melting Heat Process

2014 ◽  
Vol 137 (2) ◽  
Author(s):  
Mohamed A. Sharaf Eldean ◽  
A. M. Soliman
Keyword(s):  
Alternative Energy ◽  
Negative Impact ◽  
Thermal Power ◽  
Melting Process ◽  
Solar Thermal ◽  
Working Fluid ◽  
Heating Process ◽  
Steam Boiler ◽  
Solar Thermal Power ◽  
Solar Field

The heating process of melting margarine requires a vast amount of thermal energy due to its high melting point and the size of the reservoir it is contained in. Existing methods to heat margarine have a high hourly cost of production and use fossil fuels which have been shown to have a negative impact on the environment. Thus, we perform an analytical feasibility study of using solar thermal power as an alternative energy source for the margarine melting process. In this study, the efficiency and cost effectiveness of a parabolic trough collector (PTC) solar field are compared with that of a steam boiler. Different working fluids (water vapor and Therminol-VP1 heat transfer oil (HTO)) through the solar field are also investigated. The results reveal the total hourly cost ($/h) by the conventional configuration is much greater than the solar applications regardless of the type of working fluid. Moreover, the conventional configuration causes a negative impact to the environment by increasing the amount of CO2, CO, and NO2 by 117.4 kg/day, 184 kg/day, and 74.7 kg/day, respectively. Optimized period of melt and tank volume parameters at temperature differences not exceeding 25 °C are found to be 8–10 h and 100 m3, respectively. The solar PTC operated with water and steam as the working fluid is recommended as a vital alternative for the margarine melting heating process.

scholarly journals Performance Comparison of Different Models of Direct Steam Solar Plants Based on Parabolic Trough Technology by Simulink MATLAB

2018 ◽  
Vol 225 ◽  
pp. 02007
Author(s):  
Sanan T. Mohammad ◽  
Hussain H. Al-Kayiem ◽  
Syed I.U. Gilani ◽  
Ayad K. Khlief
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Thermal Power ◽  
Solar Thermal ◽  
Electricity Production ◽  
Maximum Temperature ◽  
Steam Generation ◽  
Steam Quality ◽  
Comparison Results ◽  
Direct Steam

Solar thermal plants are among the most promising technologies to replace fossil fuel standing applications. Among solar thermal technologies, parabolic troughs are considered as the most mature application in the market. The objective of this paper is to elaborate on comparison results of three different topologies of solar parabolic troughs field, in terms of performances and energy production. Thermolib software was used to perform the proposed power plants simulation with direct steam generation. Applying the proposed models. These models simulate the behaviour of both the solar field and the power block of a 1.2 kW solar thermal power plant. The results of this analysis demonstrating that the use of steam separator and superheater in a stand-alone solar power plant model is more advantageous in terms of steam temperature, steam quality and net electricity production in comparison to other models. The optimum topology showed that the maximum temperature of steam outlet reach 221°C, steam quality reach 1 and efficiency of power plant around 19.6% for model 3.

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