The Influence of Environmental Constraints on the Water Value†
AbstractThe establishment of more severe hydrological environmental constraints, usually as seasonal minimum flows (ϕ) and maximum ramping rates (ρ), on hydropower operation is a growing trend. This paper presents a study on the influence of ϕ and ρ on the water values (WV) of a real hydropower plant that participates in the Spanish day-ahead electricity market. For this purpose, a master-slave algorithm, based on stochastic dynamic programming (SDP) and deterministic mixed integer linear programming (DMILP), is used on a real hydropower plant. The master module, based on SDP, has a yearly planning period with weekly time steps and considers three state variables: stored water volume in the reservoir at the beginning of each week; weekly water inflow; and average weekly energy price. The slave module, based on DMILP, has a weekly planning period with hourly time steps and considers many features of the hydropower plant operation, such as: start-up costs, evaporation, wear and tear costs, etc. The results indicate that WV of a hydropower plant are very sensitive to the presence of these constraints; ϕ especially during the wettest season and ρ during the driest one. As the severity of ϕ and ρ increase, WV increase and decrease, respectively. View Full-Text
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Guisández, I.; Pérez-Díaz, J.I.; Wilhelmi, J.R. The Influence of Environmental Constraints on the Water Value. Energies 2016, 9, 446.
Guisández I, Pérez-Díaz JI, Wilhelmi JR. The Influence of Environmental Constraints on the Water Value. Energies. 2016; 9(6):446.Chicago/Turabian Style
Guisández, Ignacio; Pérez-Díaz, Juan I.; Wilhelmi, José R. 2016. "The Influence of Environmental Constraints on the Water Value." Energies 9, no. 6: 446.
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