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<br />(j, <br />U tf)" .-1 <br />- , V.:; J <br />I . <br /> <br />3 <br /> <br />THE RESIDENT POWER AND RESERVOIR SYSTEM <br />MODEL (PRSYM) <br /> <br />Introduction and Background <br /> <br />In June 1992, EPRI and TV A jointly hosted a Reservoir System Analysis Workshop with <br />invited consultants, utility representatives, and reservoir operators to review the state-of-the- <br />art of reservoir system modeling and to determine utility modeling needs in the context of the <br />INTEGRAL Project. The Workshop was followed with in-depth discussions with TV A <br />reservoir operations and power supply staff, as well as with other EPRI utility members <br />including Pacific Gas & Electric, Salt River Project, and the Northeastern Utilities. The <br />consultants and utility representatives agreed that utility needs would best be served by the <br />development of a generic, transportable, and modular Reservoir System Model, directly <br />integrated into the DSS, that could provide analysis of reservoir system behavior and <br />reservoir/power system interactions in support of operational decision making. In addition to <br />such a resident model, workshop participants expressed the need for a mechanism to link <br />existing utility-specific power and reservoir system planning models (i.e., non-resident <br />models) into the DSS. <br /> <br />The functional requirements for the resident Power and Reservoir System Model, referred to <br />as PRSYM, are specified within this section. These requirements reflect the modeling needs <br />expressed by the reservoir operators and utility staff members. The development of this <br />generic reservoir system model constitutes a major work task of the modeling component of <br />the INTEGRAL Project. <br /> <br />PRSYM Applications and Objectives <br /> <br />PRSYM is intended for use by experienced operators and technical staff to aid in <br />multipurpose reservoir system scheduling and forecasting, as well as reservoir system <br />planning. It is assumed that PRSYM will primarily be used in the context of an operational <br />system with well-defined operating rules. <br /> <br />3-1 <br />