You are right. What you are describing is an evolution of off-peak electricity, introduced well before all of us were born. 

Lots of ideas are possible. But are they practical? Engineering reliable and cost effective electricity grids is a surprisingly challenging problem. Riddled with "gotchas". As a retired professional engineer I have some insight into this, not least because my father spent half his life in the electricity generating industry. 

The question remains - has @Mon4Kooyong consulted with professional engineers with appropriate background and experience? Seems a fair question. What do you think?