The video proposes the idiot approach.
The smart approach is called planning. The load is calculated, stipulating installed capacity and load factor. That in turn is presented to the power supply authority, who determines what can be done, the cost and timeline.
Something I did personally in Riyadh Saudi Arabia. The city had no means of supplying what I needed in the time needed to supply a new mega factory. I had our own power supply installed within 12 months, until the city caught up a few years later. Then switched and sold off our generating plant.