Energy Savings for Various Residential Appliances and Distribution Networks in a Malaysian Scenario

Mithila Seva Bala Sundaram (), ChiaKwang Tan, Jeyraj Selvaraj and Ab. Halim Abu Bakar
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Mithila Seva Bala Sundaram: UM Power Energy Dedicated Advanced Centre, University of Malaya, Wilayah Persekutuan Kuala Lumpur 59990, Malaysia
ChiaKwang Tan: UM Power Energy Dedicated Advanced Centre, University of Malaya, Wilayah Persekutuan Kuala Lumpur 59990, Malaysia
Jeyraj Selvaraj: UM Power Energy Dedicated Advanced Centre, University of Malaya, Wilayah Persekutuan Kuala Lumpur 59990, Malaysia
Ab. Halim Abu Bakar: UM Power Energy Dedicated Advanced Centre, University of Malaya, Wilayah Persekutuan Kuala Lumpur 59990, Malaysia

Energies, 2023, vol. 16, issue 13, 1-18

Abstract: This paper presents a detailed study of the energy savings that can be achieved through residential appliances by implementing conservation voltage reduction (CVR). The computed energy savings are derived from the ZIP coefficients of a load model (static) under varying voltage conditions that represent the power consumed by each appliance tested. Multiple studies have shown energy savings at the substation level but not at the level of a specific residence and appliance; hence, the latter is the focus of this analysis. The appliances are determined based on the type of heating and cooling loads, and the daily duration of use for each appliance, which contributes to the total monthly consumption that is billed for a household are included in this study. Energy savings in Malaysia has been a focus of many current studies, and this study is the first attempt to achieve energy savings through the implementation of CVR. No published work has compared individual appliances that truly benefits from CVR, and this is addressed in this study. The main contribution of this study is that it provides very detailed and measured data that are used to analyze and generate energy savings for very specific residential appliances intended to meet every 1% voltage drop. The load model is developed for the common household appliances in Malaysia, and then a voltage reduction study is applied to the appliances as well as the Malaysian distribution networks. Here, we also provide insight for performing voltage reduction at an electric vehicle (EV) charging station in Malaysia. The results of this study should serve as a foundation for all practicing utilities engineers to address the issue of CVR in Malaysia. The CVR factors for residential, commercial, and industrial networks in Malaysia are also published in this paper.

Keywords: conservation of voltage reduction; energy savings; ZIP load model; cost savings; distribution network (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: 2023
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