@Mammmood - I work for a software company that caters to electrical utilities. We have software that provides reports on the various electrical load outputs used across a range of criteria.
Honestly it’s one of the features of the software that makes it compelling for utilities to buy. They can also archive data generated by the reports so that they can produce historical trends of electrical load profiles across a ten year time period if they want.
With this information they can plan out how much infrastructure they need in their substations and so forth. If they can’t handle the excess surge in electrical demand, it increases the likelihood that they’ll have a fault somewhere down the line.