California's Adaptable Model for Operations Planning for the State Water Project

by James Q. Coe, California Dep of Water Resources, United States,
Arthur W. Rankin, California Dep of Water Resources, United States,

Document Type: Proceeding Paper

Part of: Computerized Decision Support Systems for Water Managers


Operations of the California Aqueduct, a 440-mile-long feature of the State Water Project (SWP) consisting of canals, pipelines, reservoirs and hydroelectric plants, are planned using NEOSYS, a computerized mathematical model which employs state-of-the-art operations research techniques. NEOSYS simulates and optimizes the operation of five main SWP reservoirs on a monthly basis with detail for on-peak and off-peak periods. Optimization is performed by an incremental dynamic programming (IDP) component operating upon reservoir storages to minimize on-peak power cost. Feasible starting solutions are found for the IDP by a network flow programming (NFP) formulation. Simulation procedures are specific to the California Aqueduct facilities. For eight years, the California Department of Water Resources (CDWR) has used NEOSYS to optimize power and energy purchases and to allocate costs of operation to water contractors. Additional aspects of the subjects are discussed.

Subject Headings: Hydro power | Reservoirs | Hydrologic models | Water resources | Computer programming | Computer models | Water pipelines | Flow simulation | California | United States

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