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<br />point #5). <br /> <br />(c) Diversions can be constant (e.g., 50 cfs for control <br /> <br />(d) Diversions can be constant for certain periods such as <br />50 cfs for January, 40 cfs for February, etc. <br /> <br />(e) Diversions can be made for all excess water above the <br />top of conservation pool up to the diversion capacity. <br /> <br />k. Hydropower <br /> <br />(1) Reservoirs can operate to meet combinations of monthly, weekly, <br />daily, and multihourly primary hydropower energy requirements. <br /> <br />(2) System energy requirements can be specified for up to two <br />power systems. Program will meet system requirements based on balancing <br />reservoir levels. <br /> <br />(3) A tailwater rating curve can be defined as a reservoir outflow <br />vs. elevation table. Tailwater elevation can also be based on a downstream <br />reservoir elevation and/or on a block loading tailwater. <br /> <br />(4), Power peaking capability can be a constant, a function of <br />reservoir storage, a function of reservoir releases, or a function of operating <br />head. <br /> <br />(5) Power efficiency can be a constant, a function of reservoir <br />storage, a kw/cfs coefficient vs. reservoir storage, or head vs. efficiency. <br /> <br />(6) A constant leakage through the dam can be specified. This <br />water would not be available for power generation. <br /> <br />(7) Pump storage can be modeled using a dummy reservoir site to <br />define pump data and energy availability (see exhibit 5). <br /> <br />1. Multifloods <br /> <br />(1) The multi flood option may be used to operate the system for <br />a continuous period of record with a mixture of computation intervals. <br />A monthly operation could be used fora few years (assuming no routing <br />is desired) and then operate for daily or hourly flows during a major <br />flood (with detailed flood routing) and then back to a weekly or monthly <br />routing interval, etc. An unlimited number of events can be simulated in <br />this manner. <br /> <br />(2) Up, to 9 ratios of any or all floods read can be run in a <br />simulation operation. <br /> <br />(3) Each flood in a series of floods can start at different <br />reservoir storages on Rl card, or from the same storages, or can be continued <br />using the storages from the previous ,flood. <br /> <br />(4) Long floods may be routed by dividing the flood into flow <br />events which are less than the dimension limit KPER. This may be done <br /> <br />8 <br />