scholarly journals Data Envelopment Analysis Approach to Energy-Saving Projects Selection in an Energy Service Company

Mathematics ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 200
Author(s):  
Gabriel Villa ◽  
Sebastián Lozano ◽  
Sandra Redondo

Project selection is a common problem for many companies. Specifically, it consists in identifying which projects should be selected with regard to their economic efficiency, i.e., the projects that maximise the profit they bring in while minimising the cost of the resources consumed. In this paper, we have focused our interest on energy service companies because of the importance of a convenient selection of their projects. In these types of companies, the attractiveness of a project depends on both the profit estimations obtained in simulations of the energy systems to be improved, as well as the probability that the project will be awarded (e.g., in local government bids, where typically several energy service companies compete to win the bid). We propose a new project selection method, especially tailored to energy service companies and based on centralised data envelopment analysis models with limited availability of the resources. This contrasts with all existing project selection methods and allows the proposed approach to make more efficient use of the limited resources. We have applied the model to a real-world case by selecting projects in a Spanish energy service company, showing the benefits of applying this approach, and comparing the results obtained with other data envelopment analysis project selection approaches.

2017 ◽  
pp. 276-280
Author(s):  
Stepan Barna

Introduction. Sustainable economic development, increasing the role of e-commerce, receiving of fast access to information and multichannel of information exchanging enhance of the innovation activity at enterprise. According to this, topical question is the improvement the approaches to components of management system of innovative activity of energy service company. Purpose: the study of components of innovative management at energy service company on the basis of including of modern tendencies of economy and society development. Method (methodology). Methodological basis of the research were the following methods: induction and deduction – for considering the essence of the concepts «innovation system» and «innovative enterprise»; system-functional – for determining the components of the innovative management system of the energy service company; logical generalization – for distinguishing the place and role of innovative management in the activity of the energy service company. Results. The article is explored approaches to defining an innovation system and an innovative enterprise. Energy service companies are seen as innovating businesses. It is noted that the innovation management system is treated as a separate management mechanism, as a subsystem of the innovation system, as an element of the overall management system of a company, organization or institution. The place and role of the innovative management system in the activity of the energy service company is established. The results of research the components of the enterprise innovation management system is the basis for further scientific research in the direction of defining the tasks of innovative management of energy service companies.


2020 ◽  
pp. 147-156
Author(s):  
Oksana Vakun

Introduction. Improving the energy efficiency of residential and industrial enterprises is associated with ensuring efficient energy conservation, based on the principles of implementing the latest innovative technologies of energy modernization. All this is possible due to the operation of energy service companies, which are actively implementing energy modernization of facilities to ensure rational energy saving through the mechanism of concluding energy service contracts. Goal. The purpose of the article is to consider the peculiarities of the functioning of energy service companies in Ukraine and their conclusion of energy service contracts to improve the energy efficiency of housing and industrial enterprises. Method (methodology). The main methods were induction and deduction, logical generalization, comparative and system-structural analysis, grouping to identify existing problems in the operation of energy service companies and the mechanism for concluding energy service contracts. Results. Categories are considered: "energy service company", "energy service contract". The content of the understanding of energy service as a set of technical and organizational energy saving measures aimed at reducing the customer service of energy service consumption and costs for payment of fuel and energy resources. Trends are revealed and key elements of features of energy service contracts by types and forms are analyzed. The peculiarities of the mechanism of concluding an energy service contract have been studied. The expediency of introducing the latest elements of energy service contracts into the activities of energy service companies is substantiated. The relationship between energy service as a special form of energy saving, in which the costs of measures are borne by the energy service company and the energy service contract, which regulates the list of implemented energy saving measures, payback period of the project, the amount of energy savings and income sharing. energy service company.


2021 ◽  
Vol 5 (2) ◽  
pp. 339-361
Author(s):  
Alexander P. Afanasiev ◽  
Vladimir E. Krivonozhko ◽  
Finn R. Førsund ◽  
Andrey V. Lychev

Author(s):  
Farhad Hosseinzadeh Lotfi ◽  
Ali Ebrahimnejad ◽  
Mohsen Vaez-Ghasemi ◽  
Zohreh Moghaddas

2021 ◽  
Vol 9 (4) ◽  
pp. 378-398
Author(s):  
Chunhua Chen ◽  
Haohua Liu ◽  
Lijun Tang ◽  
Jianwei Ren

Abstract DEA (data envelopment analysis) models can be divided into two groups: Radial DEA and non-radial DEA, and the latter has higher discriminatory power than the former. The range adjusted measure (RAM) is an effective and widely used non-radial DEA approach. However, to the best of our knowledge, there is no literature on the integer-valued super-efficiency RAM-DEA model, especially when undesirable outputs are included. We first propose an integer-valued RAM-DEA model with undesirable outputs and then extend this model to an integer-valued super-efficiency RAM-DEA model with undesirable outputs. Compared with other DEA models, the two novel models have many advantages: 1) They are non-oriented and non-radial DEA models, which enable decision makers to simultaneously and non-proportionally improve inputs and outputs; 2) They can handle integer-valued variables and undesirable outputs, so the results obtained are more reliable; 3) The results can be easily obtained as it is based on linear programming; 4) The integer-valued super-efficiency RAM-DEA model with undesirable outputs can be used to accurately rank efficient DMUs. The proposed models are applied to evaluate the efficiency of China’s regional transportation systems (RTSs) considering the number of transport accidents (an undesirable output). The results help decision makers improve the performance of inefficient RTSs and analyze the strengths of efficient RTSs.


Author(s):  
Iveta Palecková

The aim of the paper is to estimate the cost efficiency of the Czech and Slovak commercial banks within the period 2010-2014. For empirical analysis the Data Envelopment Analysis input-oriented model with variable returns to scale is applied on the data of the commercial banks. The intermediation approach is adopted to define the inputs and outputs. The Czech commercial banks are more cost efficient than Slovak commercial banks. The development of average cost efficiency is similar in the Czech and Slovak banking industry. The most efficient Czech banks are Ceská sporitelna and Sberbank in the Czech banking sector, the most efficient Slovak bank is Privatbanka with 100% efficiency.


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