Table 32.  Estimated Costs of Single-Circuit Alternating Current
           Transmission Lines

Voltage                          December 1989 Installed Cost
(kilovolts)                       (thousand dollars per mile)

115.........................               125-375
138.........................               125-375
230.........................               150-375
345.........................              350-700
500.........................               400-800

   Source: Electric Power Research Institute, Technical Assessment
Guide: Electric Supply, 1989, Vol. 1, Revision 6 (Golden, CO, 
November 1989), p. B-4.


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