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Pumped-storage unit commitment with considerations for energy demand, economics, and environmental constraints

M.E. Nazari, M.M. Ardehali and S. Jafari

Energy, 2010, vol. 35, issue 10, 4092-4101

Abstract: Aside from their zero fuel costs, the pumped-storage units can reduce emissions of thermal generating units. The objective of this study is to investigate (a) thermal unit commitment with considerations for environmental constraints (ECUC), and (b) pumped-storage and thermal unit commitment with considerations for environmental constraints (PSECUC) based on a new optimization methodology. The PSECUC determines the start-up and shut-down schedules of pumped-storage and thermal generating units that meet the required demand so that the costs for fuel, start-up, and emissions (TC) are minimized. For the ECUC (thermal generating units only), the results show improvements of 0.03 and 0.50% in TC and excess emissions (EXEM), respectively. For the PSECUC, it is determined that 2-pumped-storage units can simultaneously decrease the TC and EXEM by 1.20 and 60%, respectively.

Keywords: Unit commitment; Pumped-storage; Environmental constraints (search for similar items in EconPapers)
Date: 2010
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