relation: https://khub.utp.edu.my/scholars/10099/
title: Peak-off-peak load shifting for optimal storage sizing in hybrid power systems using Power Pinch Analysis considering energy losses
creator: Mohammad Rozali, N.E.
creator: Ho, W.S.
creator: Wan Alwi, S.R.
creator: Manan, Z.A.
creator: Klemeš, J.J.
creator: Mohd Yunus, M.N.S.
creator: Syed Mohd Zaki, S.A.A.
description: The difference in electricity pricing based on the time of power use has led to load shifting from peak to off-peak hours in hybrid power systems (HPS). Apart from optimising electricity cost, shifting of the load may also change the capacity of storage in the system. Power Pinch Analysis has been recently applied to guide load shifting aiming to minimise the cost of electricity, considering the peak and off-peak electricity pricing. The HPS was assumed to be ideal with 100 efficiency, which is not achievable in actual operational condition. This work extends the study by scrutinising the effects of peak-off-peak load shifting on the capacity of storage in HPS. The effects of energy losses due to the inefficiency during power conversion, transfer and storage in the HPS are considered in developing shifting heuristics to ensure optimal storage size is achieved. Implementation of the proposed load shifting strategy on a case study demonstrates that a reduction of up to 30 in the storage size can be achieved, which led to a minimum storage cost. The distribution of peak hours� demand to off-peak hours also successfully provide significant savings in the electricity bill. © 2018 Elsevier Ltd
publisher: Elsevier Ltd
date: 2018
type: Article
type: PeerReviewed
identifier:   Mohammad Rozali, N.E. and Ho, W.S. and Wan Alwi, S.R. and Manan, Z.A. and Klemeš, J.J. and Mohd Yunus, M.N.S. and Syed Mohd Zaki, S.A.A.  (2018) Peak-off-peak load shifting for optimal storage sizing in hybrid power systems using Power Pinch Analysis considering energy losses.  Energy, 156.  pp. 299-310.  ISSN 03605442     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85051383787&doi=10.1016%2fj.energy.2018.05.020&partnerID=40&md5=6c9c32b9fd63df8f72282952174c8c40
relation: 10.1016/j.energy.2018.05.020
identifier: 10.1016/j.energy.2018.05.020