A multi-attribute decision model for portfolio selection aiming to replace technologies in industrial motor systems

• Published in: Energy conversion and management Vol. 57; pp. 97 - 106
• Main Authors: Sola, Antonio Vanderley Herrero, Mota, Caroline Maria de Miranda
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01-05-2012; Elsevier
• Subjects: Applied sciences; Energy; Energy efficiency; Exact sciences and technology; Industrial energy systems; Motor systems; Multicriteria model; Motor systems; Industrial energy systems; Energy efficiency; Multicriteria model
• ISSN: 0196-8904; 1879-2227
• DOI: 10.1016/j.enconman.2011.12.013

► We propose a multicriteria decision model for technology replacement. ► We prioritize induction motors in order to improve the energy efficiency. ► The best portfolio of options is selected based on decision maker’s utilities. ► The model contribute to surpass some organizational barriers.
The energy efficient technologies offered by the market are in constant evolution, but their insertion in the productive sector comes up against organizational barriers, which obstruct decision making in firms. This paper proposes a multicriteria decision model in order to replace technologies in industrial energy systems, regarding organizational barriers for energy efficiency. The proposed model is applied in industrial motor systems, using Multi-Attribute Utility Theory (MAUT), in order to select the best portfolio of options based on the decision maker’s utilities. Portfolios of options from the prioritized set of motors compiled by the operational area of the studied industry are analyzed, including diverse suppliers and different classes of motors. The results show that it is essential to structure the proposed model in two steps, beginning with the operational level, to ensure that important technologies for the production system are prioritized, thus preserving the interests of the organization and improving the efficiency of industrial energy systems.