The grid is one of the world's largest real-time reactive machines. Power is generated on the fly as you need it. You could draw a direct path from your home A/C switching on all the way back up the chain to some source needing to push power to meet your demand.
The supply of the grid is a big mix of diverse sources: renewables, natural gas, hydro, nuclear, coal—whatever. Each power source has different pros and cons, and you cannot really over-index on one to have a reliable grid. For example, nuclear is a fantastic and relatively clean source for base load (obviously, when handled responsibly), but not great to provide power that reacts to the shifts of demand through the day. Solar, obviously, doesn't work at night. The grid operator has to build a supply mix that fits the needs of their region. (And that's typically by facilitating energy market with different energy products where generators bid and participate.)
The grid is one of the world's largest real-time reactive machines. Power is generated on the fly as you need it. You could draw a direct path from your home A/C switching on all the way back up the chain to some source needing to push power to meet your demand.
The supply of the grid is a big mix of diverse sources: renewables, natural gas, hydro, nuclear, coal—whatever. Each power source has different pros and cons, and you cannot really over-index on one to have a reliable grid. For example, nuclear is a fantastic and relatively clean source for base load (obviously, when handled responsibly), but not great to provide power that reacts to the shifts of demand through the day. Solar, obviously, doesn't work at night. The grid operator has to build a supply mix that fits the needs of their region. (And that's typically by facilitating energy market with different energy products where generators bid and participate.)