LIST OF TABLES

 Table Page
 1 Estimated cost per peak kilowatt of photovoltaic systems
 1981-2000. . . . . ... ...... 16

 2 Economic scenarios for the photovoltaic feasibility
 simulation model . . . . ... .19

 3 Estimated first year in which photovoltaic irrigation
 systems are economically feasible. . . ... 20




 LIST OF FIGURES

Figure
 1 Basic flow diagram of photovoltaic powered irrigation
 system feasibility simulation model. . . ... 12

 2 Estimated differences in the discounted costs of
 photovoltaic powered and conventional electric powered
 irrigation systems for this optimistic scenario and
 selected by back ratios. . . . . ... 21

 3 Estimated differences in the discounted costs of
 photovoltaic powered and conventional electric powered
 irrigation systems for the base scenario and selected by
 back ratios . . . . ... ... 23

 4 Estimated differences in the discounted costs of
 photovoltaic powered and conventional electric powered
 irrigation systems for the pessimistic scenario and
 selected by back ratios. . . . . ... 24

A-i Simplified schematic or a photovoltaic powered irrigation
 system . .. . . . . .... 30

A-2 Mean, minimum and maximum hourly solar insolation levels
 for Orlando/Herndon airport. . . . ... ..31