Identification of Technoeconomic Opportunities with the Use of Premium Efficiency Motors as Alternative for Developing Countries

Julio R. Gómez, Enrique C. Quispe, Rosaura del Pilar Castrillón and Percy R. Viego
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Julio R. Gómez: Center of Energy and Environmental Studies Department, Universidad de Cienfuegos, Carretera a Rodas Km 4 Cuatro Caminos, Cienfuegos 55100, Cuba
Enrique C. Quispe: Energy Research Group GIEN, Energy and Mechanical Department, Universidad Autónoma de Occidente, Calle 25 No.115-85, Cali 760030, Colombia
Rosaura del Pilar Castrillón: Energy Research Group GIEN, Energy and Mechanical Department, Universidad Autónoma de Occidente, Calle 25 No.115-85, Cali 760030, Colombia
Percy R. Viego: Center of Energy and Environmental Studies Department, Universidad de Cienfuegos, Carretera a Rodas Km 4 Cuatro Caminos, Cienfuegos 55100, Cuba

Energies, 2020, vol. 13, issue 20, 1-16

Abstract: More than 65% of electricity consumed worldwide by the industrial sector is used in electric-motor-driven systems. For this reason, the efficiency of electric motors is an important factor in improving the energy efficiency of the industry. Additionally, this contributes to reducing energy consumption, production costs, as well as CO 2eq emissions. The replacement of motors with efficiency class IE1 by motors of efficiency class IE3 is one possible alternative to increase the efficiency of electric motor systems. When a program to replace motors with others of greater efficiency is initiated, it is necessary to casuistically evaluate all identified opportunities. Economic viability can be evaluated using a variety of methods. Often, the methods recommended by manufacturers or consulting entities focus on simple payback time without accounting for all influencing factors. This paper contributes to the academic discussion by proposing a methodology based on the calculation of energy-saving potential, by performing a preliminary an a priori evaluation and determining the economic opportunities. It avoids evaluating all motors in the studied facility and shows its effectiveness by using the cost of energy saved to distinguish which motors to evaluate. Finally, it provides a complete economic evaluation of the final decision on the basis of discounted cash flow methods. A short-production-cycle sugarcane industry was used in the case study.

Keywords: energy cost; energy saving; energy-efficient motors; economic assessment; cost-effectiveness (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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