The Quantitative Evaluation Research of Grid Planning Economy Based on Improved DEA Model

2013 ◽  
Vol 278-280 ◽  
pp. 2163-2171 ◽  
Author(s):  
Hui Li ◽  
Jin Chao Li ◽  
Zi Fa Liu ◽  
Zhi Dong Wang ◽  
Wei Shu Li

To solve the problem for the complexity of the quantitative evaluation of grid planning economy, in accordance with the principle of cost-benefit analysis, and combined with the characteristics of UHV power grid, we construct an input-output index system which contains the planning costs, economic benefits, the benefits of interconnection, environmental benefits, social benefits and other benefits in this paper. And for the problem of comparison between unexpected output indicators and effective unit that exists in the index system, we improve the traditional data envelopment analysis (DEA), and build a quantitative evaluation model of grid planning economy based on the improved DEA model. Finally, use the data of the planning program of a UHV grid, to test and verify the established evaluation model. The results show that the model is reasonable and effective.

2021 ◽  
Vol 236 ◽  
pp. 01021
Author(s):  
Penglai Zuo ◽  
Quanming Liang ◽  
Chenlong Wang ◽  
Jiajia Gao ◽  
Tao Yue ◽  
...  

This study focuses on establishing a cost-benefit evaluation model of low NOx combustion technology and the environmental benefits and economic benefits evaluation of technology operation were carried out as well. Results showed that: (1) The operation cost per unit calorific supply of the low NOx combustor with larger capacity (14 MW) boilers was 1.5-2.1 yuan/GJ, which was 22.3% to 26.2% as much as that of boilers with smaller capacity (0.7 MW). Compared with scattered boilers with smaller capacity, it is more economical to use boilers with larger capacity for centralized heating. (2) The lower the NOx emission concentration was, the greater the NOx emission reduction was. Furthermore, the lower the NOx emission benefits of low NOx combustor per unit calorific supply was, the greater the economic benefit of NOx reduction per unit calorific supply was. Based on the environmental and economic benefits analysis, the lean premixed combustor is recommended for natural gas boilers with capacity of 7 MW and below, and flue gas recirculation combustor (FGR-30) could be selected for natural gas boilers with capacity above 7 MW to achieve the NOx retrofits requirements of 30 mg/m3 or 80 mg/m3.


2008 ◽  
Vol 3 (3) ◽  
Author(s):  
M. B. Fernandes ◽  
M. C. Almeida ◽  
A. G. Henriques

Desalination technologies provide an alternative for potable water production, having significant potential for application where fresh water scarcity exists. Potential benefits have to be balanced with other factors, such as high costs, high energy consumption, and significant environmental impacts, for the understanding of real risks and gains of desalination within the context of integrated water resources management. Multiple factors can be considered when analysing the viability of a desalination project but often a limited approach is used. The complexity in the analysis lies in finding the alternatives that obey to multiple objectives (e.g. reduced environmental impact, social acceptance, less cost associated). In this paper, development of a methodology based on multiple criteria decision support system for the evaluation and ranking the potential of desalination technologies is described and applied to a Portuguese case study. Relevant factors to the selection of desalination technologies were identified using SWOT analysis and the MACBETH (Measuring Attractiveness by a Categorical Based Evaluation Technique) approach was applied. Technical alternatives considered include reverse osmosis and multi-effect desalination (MED), together with energy production by fossil fuels or solar energy. Production of water by conventional approaches was also considered. Results, for non-economic benefits, show higher score for MED solar but, in the cost-benefit analysis, conventional methods of water production have higher ranking since costs of renewable energies are not yet competitive. However, even if not preferred in economic terms, desalination is ranked significantly above the conventional approaches for non-economic criteria.


2021 ◽  
pp. 009385482110383
Author(s):  
Gene Mercer ◽  
Emma Ziersch ◽  
Shawn Sowerbutts ◽  
Andrew Day ◽  
Henry Pharo

Rehabilitation of incarcerated men is a primary focus of correctional systems across the world. The present pilot study examined the effect of participation in the South Australian Violence Prevention Program (VPP) on recidivism trajectories. Individuals who participated in the VPP were significantly less likely to engage in violent recidivism, with the greatest effect observed between Aboriginal and/or Torres Strait Islanders relative to similarly matched comparators. In addition, the types of violent crimes committed were less severe for those who engaged in treatment relative to the comparison group. No differences were observed between groups in overall rates of reoffending, or the length of time following release before reoffending. The study also quantified the economic impacts of treatment and found it was associated with a positive cost–benefit ratio of Aus$1.13. The results provide evidence that the VPP does reduce the rate of violent recidivism, and that these results translate into economic benefits for society.


1981 ◽  
Vol 1 (4) ◽  
pp. 433-464 ◽  
Author(s):  
Harold Wolman

ABSTRACTRecent social science research – particularly evaluation research and cost-benefit analysis – has produced a substantial and very useful literature on the impact of public policy and on the relationship of program inputs to outputs and outcomes. However, the explicit focus of these analytic techniques on impacts and outcomes does not systematically yield useful information on why programs have been successes or failures. Policy-makers faced with an evaluation of program success or failure obviously need to know something about the why question if they are to make needed adjustments in the program or carry the lessons of one program to other areas. This article attempts to present a comprehensive framework for explaining and understanding program performance. It is meant to have two uses and to serve two clienteles. First, it presents for social scientists a set of research questions to guide research into the determinants of program performance. Second, it provides public policy-makers with a set of action questions which should be asked and answered appropriately in the actual formulating and carrying out of public policy, as a means of enhancing the chances of program success. The framework is divided into two parts, the formulating process and the carrying out process, although these two processes may overlap considerably, both in time and in terms of substantive concerns. Program success may be impeded by problems or inadequacies in one or more of the components in either the formulating stage or the carrying out stage or in both.


2002 ◽  
Vol 24 (4) ◽  
pp. 267-303 ◽  
Author(s):  
Arthur J. Reynolds ◽  
Judy A. Temple ◽  
Dylan L. Robertson ◽  
Emily A. Mann

We conducted the first cost-benefit analysis of a federally financed, comprehensive early childhood program. The Title I Chicago Child-Parent Centers are located in public schools and provide educational and family support services to low-income children from ages 3 to 9. Using data from a cohort of 1,539 program and comparison-group children born in 1980 who participate in the Chicago Longitudinal Study, measures of program participation were significantly associated with greater school achievement, higher rates of high school completion, and with significantly lower rates of remedial education services, juvenile delinquency, and child maltreatment. Economic analyses indicated that the measured and projected economic benefits of preschool participation, school-age participation, and extended program participation exceeded costs. In present-value 1998 dollars, the preschool program provided a return to society of $7.14 per dollar invested by increasing economic well-being and tax revenues, and by reducing public expenditures for remedial education, criminal justice treatment, and crime victims. The extended intervention program (4 to 6 years of participation) provided a return to society of $6.11 per dollar invested while the school-age program yielded a return of $1.66 per dollar invested. Findings demonstrate that an established public program can provide benefits that far exceed costs. Key elements of CPC program effectiveness include an instructional focus on literacy, opportunities for intensive parent involvement, and implementation by well-trained staff within a single administrative system.


2018 ◽  
Vol 57 ◽  
pp. 05001
Author(s):  
Kuo Wei Hsu ◽  
Shang Zhen Liao

Green facilities of urban agriculture offer a fertile ground for green innovation, such as rooftop gardens, green curtains, and indoor plant growing, which create a new forms of urban farming economy. The previous studies for cost-benefit analysis of urban agriculture indicated that green facilities could contribute both quantitative and qualitative benefits. The value of green facility strategies of urban agriculture may often be underestimated without transforming qualitative benefits to quantitative benefits. This study examined the effects of green facilities of urban agriculture development in Taiwan. The market reaction was explored by adopting economic value added (EVA) technique for the measurement of both quantitative and qualitative value contributed by green facilities. The results from this study support that there exists interaction between qualitative factors such as indirect economic benefits and social psychological benefits and quantitative factors, agricultural production and energy saving impacted by green facilities. The study concluded that consumers of urban agricultural crops are willing to pay more for eco-friendly products. The establishment of relationship between urban agricultural production and consumption can contribute to sustainability while generating economic opportunities.


2009 ◽  
Vol 15 (1) ◽  
pp. 39-57 ◽  
Author(s):  
CARLOS A. ULIBARRI ◽  
VICTOR C. ULIBARRI

ABSTRACTThis paper applies a household production framework (Becker, 1971) to infer the economic value of a cultural heritage site, namely, the Petroglyph National Monument, situated in Albuquerque, New Mexico, USA. The empirical analysis uses benefit-transfer techniques from three source studies: those of Bergstrom and Cordell (1991) and Boxall et al. (2003), which concern willingness-to-pay to hike and view rock art sites; and those of Rolfe and Windle (2003, 2006), which concern willingness-to-pay by Aboriginal and general populations to preserve a cultural heritage site containing rock art. The benefit-transfer analysis estimates recreational values between 3.75 million and 7 million dollars per year (depending on perceptions of the cultural attribute quality) and a nonuse value of approximately 12.5 million dollars per year. By comparison the annualized costs of developing/operating the study site are 8.5 million dollars per year. Thus a partial cost-benefit analysis suggests the study site yields net economic benefits upwards of 7.8 million dollars per year.


Author(s):  
Zhao Weishu ◽  
Zhang Beibei ◽  
Yang Yang

The emergence of prefabricated buildings is helpful to solve the problems of serious energy consumption and environmental pollution in traditional cast-in-place buildings. However, the current unclear benefits of prefabricated buildings have led to great constraints on its development in China. Therefore, in order to clarify the comprehensive benefit level of prefabricated buildings and promote the development of prefabricated buildings, the comprehensive benefits of prefabricated buildings are analyzed from four aspects of economy, environment, society, and security, and 19 evaluation indexes of economic benefits, environmental benefits, social benefits, and safety benefits of prefabricated buildings are selected from the life cycle dimension in this paper. The comprehensive benefits of prefabricated buildings are constructed by using set pair analysis theory. Finally, through the analysis of the prefabricated building project in Hefei, the feasibility of the model was verified, and comprehensive benefit level of prefabricated buildings in Hefei was further judged. This paper provides a feasible and operable evaluation model for the comprehensive benefit evaluation of prefabricated buildings and also provides a theoretical support for the development of prefabricated buildings.


Author(s):  
Holger Möller ◽  
Fiona Haigh ◽  
Rema Hayek ◽  
Lennert Veerman

The aim of this study was to identify a best practice method to cost the health benefits of active transport for use in infrastructure planning in New South Wales, Australia. We systematically reviewed the international literature covering the concept areas of active transport and cost and health benefits. Original publications describing a method to cost the health benefits of active transport, published in 2000–2019 were included. Studies meeting the inclusion criteria were assessed against criteria identified in interviews with key government stakeholders. A total of 2993 studies were identified, 53 were assessed for eligibility, and 19 were included in the review. The most commonly studied active transport modes were cycling (n = 8) and walking and cycling (n = 6). Exposures considered were physical activity, road transport related injuries and air pollution. The most often applied economic evaluation method was cost benefit analysis (n = 8), and costs were commonly calculated by monetising health outcomes. Based on evaluation of models against the criteria, a Multistate Life Table model was recommended as the best method currently available. There is strong and increasing interest in quantifying and costing the health benefits of active transport internationally. Incorporating health-related economic benefits into existing regulatory processes such as cost benefit analyses could provide an effective way to encourage the non-health sector to include health impacts in infrastructure measures.


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