Generally
It is important to minimize the need for energy especially in processes with high demand.
That is as true for electrical energy as thermal energy.
I´ll principally describe the need of electrical energy system.
In a plant with several processes it is important to supervise every process unit regarding energy demand as well as control, regulating and supervising all of the process occurring equipment.
With the help of an energy control system it is possible to supervise and minimize the electrical energy demand as well as the need for higher operation security.
The system's task should be to efficiently supervise, estimate and analyze the energy demand instantaneously and continuosly.
In processes where the electrical energy demand is high, it is important
to be able to supervise the power outlet from the main line net instantaneously.
If power peaks can be subdued and the outlet of energy continuously
supervised, you can influence and minimize costs effectively.
Take a look at Electrical energy its supervising and control