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<br />tool such as the MUL TISYM produc- <br />tion cost model is essential to accu- <br />rately model the interaction of potential <br />long-term replacement power re- <br />sources with the interconnected <br />system. <br /> <br />Although specific transmission im~ <br />provements were not exphcitly modeled <br />as pan of the proof-of-concept analy~ <br />sis, the analysis results do illustrate how <br />the location of the replacement re- <br />source will affect the fIo"". of power on <br />Western's system. Vv"hile MULTISY~t <br />can model contractual transmission <br />path constraInts and identlfy their affect <br />on economic dispatch and reliability, <br />traditional po\l,ler-fIow analysis ....:ill be <br />necessary to study transmission effects <br />in detail. <br /> <br />Appropriate sources for Interconnected <br />system load and resource data were <br />identified and tested, and will be appro- <br />pnate for \\'estern to use In mamtaining <br />a current database [0 use m evaluatlng <br />replacement resources. <br /> <br />Data gathering and unplementatlOn <br />resulted In a useable database for <br />Western as a starting pomt for actual <br />evaluations. The models developed <br />durmg the proof-of-concept analysis <br />were In a relatively advanced stage of <br />Implementation as work was completed <br />on this study, reducing the amount of <br />additional \\"ork for Western prior to <br />perfonning actual replacement resource <br />evaluations. <br /> <br />ED <br />