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<br />l'H'It\ I. "'!:t <br />;)t.' U"...J <br /> <br />June 29, 1993 <br /> <br />Gunnison Planning Model - Info Theme No.5 <br /> <br />Information Related to Powerplants <br /> <br />The planning model will represent three hydropower plants in the Baseline and <br />Historical Scenarios (Blue Mesa, Morrow Point, and Crystal). One predesigned . <br />hydropower facility (AB Lateral) will be switched off in both scenarios. In addition, <br />users will be able to add the information needed to compute hydropower generation at <br />any existing or potential reservoir (except Cerro and Fairview). <br /> <br />1. Physical Capacity. Every powerplant, except AB Lateral, will <br />have a fixed hydraulic capacity. Users will specify this single <br />integer value in CFS, and it will be converted internally into a 12 <br />X I set of AF/month integer values. In the network, these values <br />will be used as the "high" on the link whose flows are used to <br />compute power generation. (The AB Lateral facility will have a <br />12 X I set of user-specified capacity values in CFS. See Theme <br />No.9.) <br /> <br />2. Efficiency. Every powerplant will have an efficiency factor <br />associated with it. Unlike the "irrigation efficiency" factors <br />associated with agricultural demands, powerplant efficiencies <br />have no effect upon the amounts of demands or return flows, so <br />range checking is not necessary to prevent infeasible conditions. <br />However, the user interface should enforce a range of 0% to <br />100% as a guideline to show users what values are meaningful. <br /> <br />3. Powerhead. <br /> <br />a. Morrow Point and Crystal are modeled as <br />"run-of-the-river" powerplants with fixed <br />heads, because the water levels in Morrow <br />Point and Crystal Reservoirs are assumed <br />to remain constant. (In fact, the reservoirs <br />are not modeled at all.) Users can specify <br />these two powerheads as integer values in <br />feet. <br /> <br />b. AB Lateral. Like Morrow Point and <br />Crystal, the AB Lateral hydropower facility <br />will have a fixed, user-modifiable head. <br />(Unlike Morrow Point and Crystal, flows <br />through the plant will be demand-driven <br />rather than incidental. See Theme No.9.) <br /> <br /> <br />