Correct Answer - Option 3 : utilization factor
Utilization factor: It is the ratio of maximum demand on the power station to the rated capacity of the power station.
Utilization factor = maximum demand / rated capacity
Load factor: The ratio of average load to the maximum demand during a given period is known as the load factor.
Load factor = average load/maximum demand
= Units generated in T hours/ (T × Maximum demand)
Plant capacity factor: It is the ratio of actual energy produced to the maximum possible energy that could have been produced during a given period.
\(Plant\;capacity\;factor = \frac{{{\rm{Actual\;energy\;produced}}}}{{Maximum\;energy\;that\;could\;have\;been\;produced}}\)
\( = \frac{{Average\;demand \times T}}{{Plant\;capacity \times 100}}\)
\(= \frac{{Average\;demand}}{{Plant\;capacity}}\)
\(Annual\;plant\;capacity\;factor = \frac{{{\rm{Annual\;kWh\;output}}}}{{Plant\;capacity \times 8760}}\)
Demand factor: It is the ratio of maximum demand on the power station to its connected load.
Demand factor = Maximum Demand / Connected load
Diversity factor: The ratio of the sum of individual maximum demands to the maximum demand on the power station is known as a diversity factor.
\(Diversity\;factor = \frac{{Sum\;of\;individual\;maximum\;demands}}{{Maximum\;demand\;on\;power\;station}}\)
