Correct Answer - Option 3 : the ratio of the average demand to plant capacity factor
Concept:
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.
\(Plant\;capacity\;factor = \frac{{{\rm{Actual\;energy\;produced}}}}{{Maximum\;energy\;that\;could\;have\;been\;produced}}\)
\( = \frac{{Average\;demand \times T}}{{Plant\;capacity \times 100}}\)
\(= \frac{{Average\;demand}}{{Plant\;capacity}}\)
\(Annual\;plant\;capacity\;factor = \frac{{{\rm{Annual\;kWh\;output}}}}{{Plant\;capacity \times 8760}}\)
Explanation:
From the above relation, the plant capacity can be defined as the ratio of the average demand to plant capacity factor.
Plant capacity = Average demand/plant capacity factor