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I I I I I I I I I I I I I I I I I I I 11 As of January I, 1983, installed generating capability totaled 122,828 MW. The net generation additions, which reflect new units, retirements and reratings totaled 2,094 MW during 1982 as detailed below: NET GENERATION ADDITIONS (Winter Capability - MW) Hydro - Conventional 891 Combined Cycle 0 Hydro - Pumped Storage 0 Geothermal 110 Steam - Coal 987 Internal Combustion 2 Steam - Gas & Oil -83 Cogeneration 109 Nuclear 0 Other 13 Combustion Turbine 65 ----------- Total 2,094 Figure 3 graphically portrays the mix of existing WSCC generation as of January I, 1983, and Table 9 summarizes the existing generatiDn by type and area. Figure 4 and Table 10 indicate the generation additions by type that are planned during the ten-year period. In addition, Table 11 indicates the annual generation additions by type and year, and Table 12 and Figure 5 show the 1992 generation cDmposite planned for the WSCC region. GeneratiDn additions projected for the 1983-1992 period reflect the heavy reliance that is being placed Dn cDal and nuclear resources. Coal-fired generating units account fDr 44.4 percent of the generatiDn additions planned through 1992, and nuclear facilities represent 31.4 percent of the planned additions. As of December 31, 1992 installed generating capability is projected to total 162,012 MW. Coal-fired and nuclear resources are projected to be 27.6 percent and 9.7 percent, respectively, of the total installed capability. CDntinued development of coal and nuclear resources will allow the utility industry tD meet future energy requirements and minimize its dependence Dn Dil and gas. Annual revisions to reported planned generation additions reflect the continuing difficulty in licensing and constructing nuclear facilities. The present concern regarding the safety of nuclear generation facilities and the inability to finance, construct and receive operating licenses for nuclear power plants are factors limiting the development of these facilities. Cancellations or deferments Df coal and nuclear reSDurces will postpDne the retirement of older Dil and gas-fired units. thereby increasing the burden on these less efficient units and extending the dependence on Dil and gas as primary fuels. The increased operation of older units may also result in a higher incidence of equipment failure and reduced bulk power supply reliability. The delay of new non-oil/gas-fired facilities, due to reduced lDad growth rate projectiDns and anticipated conservation efforts, will promote continued reliance on less economical oil/gas-fired generation. The current dependence on oil and gas for electric energy production cannot be reduced until non-oil/gas-fired generating facilities are placed in operation.