This document compares the specifications of two motors, Motor A and Motor B, that have the same output ratings in horsepower and kilowatts but different conversion efficiencies, costs, and lifetimes. Motor B has a higher conversion efficiency of 0.9 compared to 0.8 for Motor A, a higher initial cost of $300 versus $150, and a longer replacement life of 42240 hours versus 10560 hours, though it also has a higher salvage value and uses slightly less electricity per year.

1. Motor A Motor B
Output Rating hp 10 10
Output Rating KW 7.5 7.5
Conversion Efficiency 0.8 0.9
Initial Cost 150 300
Replacement Life hours 10560 42240
Salvage Value 50 100
Annual maintenance and Overhead cost 50 50
Electricity cost 0.04 0.04
Operating hours per year 2112 2112
KWhr/Year 19800 17600
Electricity cost per year 792 704