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<br />. <br /> <br />~) <br /> <br />.' <br /> <br />It should also be remembered that the Glen Canyon generators, If oper- <br /> <br />ated as intended with the lake permItted to fill when It can, has the capability <br /> <br />of supplying electricity to a cIty of 500,000 people IncludIng its industries, <br /> <br />If the Glen Canyon powerplant were not on the line, about 100 customers, many <br /> <br />of whom are cities. towns, and RLAs, would have to seek other sources of <br /> <br />power. This power would probably be replaced by some type of fuel-consuming, <br /> <br />thermal-electric generation not readIly at hand today, <br /> <br />Power generated at Glen Canyon has successfully prevented enforced <br /> <br />cut-backs In powcr use in adjacent marketing areas on sevcral occasions--a <br /> <br />real reserve generating capacIty value! <br /> <br />AgaIn. Dr. Guadagno may be referring only to energy production with <br /> <br />Lake Powell restricted to elevation 3600 feet as compared with production with <br /> <br />a limitation at 3700 feet. If so, it seems obvIous that reducing the power head <br /> <br />by an amount that would cause an average loss of 159 megawatts of capacity <br /> <br />for the period until year 2059 would reduce the energy potential at Glen Canyon <br /> <br />generating facilities' and, consequently, reduce the national power reserve, <br /> <br />Any redudion in capacity ami elimination of its output constitutes a reduction <br /> <br />in the natIonal power producing system, <br /> <br />The doctor Is not correct when he says that the potential power production <br /> <br />capability of Glen Canyon Dam has been overestimated, At the time the machinery <br /> <br />was designed for the powerplant It was estImated that the generating capacity <br /> <br />would be 90r) megawatts. Since then the generators have been certified to produce <br /> <br />950 megawatts. The basis for the contention that "the power production capability <br /> <br />of Glen Canyon Dam has been overestImated," is unknown, but anyone can check <br /> <br />the records of operation and ascertain Its power productIon hIstory. <br /> <br />16 <br />