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<br />( <br /> <br />( <br /> <br />13 <br /> <br />I": <br />C": <br />C;:) <br />-- <br /> <br />conservation, cogeneration, diversity exchanges, power purchases, <br /> <br />installa'tion of generation facilities at existing dam-sites, small <br /> <br />hydro and combustion turbines are generally preferred economically <br /> <br />r <br />-, <br /> <br />and environmentally to projects such as Juniper-Cross Mountain <br />and coal-fired plants.22/ While options with the lowest environ- <br /> <br />mental and economic cost are the most preferable, they must also <br /> <br />be available. Cheap photovoltaics are an example of a preferred <br /> <br />but not (currently) available technology; while new coal plants <br /> <br />may be an example of an available though non-preferred technology. <br /> <br />1. Conservation. <br /> <br />Any discussion of Colorado-Ute's options must <br /> <br />begin with conservation. The 153 Mw peak demand reduction by 1994 <br /> <br />indicated by Table 3 is entirely in the industrial sector. Resi- <br /> <br />dential and commercial conservation may present substantial oppor- <br /> <br />tunities to Colorado-Ute. An analysis by EDF shows a conservation <br /> <br />takes the <br /> <br />of at least 10 Mw/yr, <br />. 23/ <br />necessary act1ons.-- <br /> <br />starting in 1986, if Colorado-Ute <br /> <br />potential <br /> <br />Because Colorado-Ute action is <br /> <br />necessary to implement it, residential/commercial conservation is <br /> <br />listed here as a resource option, and has not been deducted from <br /> <br />the baseline forecast given in Table 1. <br /> <br />2. Cogeneration. <br /> <br />Because oil shale projects involve the heating of <br /> <br />great quantities of shale to high temperatures, they have a large <br /> <br />cogeneration potential. For the C-b project in particular, <br /> <br />development of 180 Mw of cogeneration is planned. <br /> <br />The cogener- <br /> <br />ation plans and potential for the Exxon project are not known. <br />