While we sleep each night AI will be working to improve itself. Once AI understands fully what its task is to be it will race a head and leave us in the dust. Some results from tests indicate AI has abilities to solve problems in a way that make no sense to us. Ai has logical powers that we have yet to achieve. I say sooner rather than later.
Elon is adding huge batteries to the grid to soak up the power that is generated when no one is using it. The batteries will then supply power when there is a demand for it. He wants to decentralized the power grid system.