Does anyone remember the 2003 blackout [0] that left 55 million people in 2 countries without power for up to 3 days?
With a worldwide grid we could make one a hundred times larger.
[0] https://en.wikipedia.org/wiki/Northeast_blackout_of_2003
With a worldwide grid we could make one a hundred times larger.
[0] https://en.wikipedia.org/wiki/Northeast_blackout_of_2003
Using HVDC (which is more efficient over long distances anyway), adjacent grids basically appear as just another power plant to yours (and some early HVDC connections literally consisted of a motor coupled to a generator!), and grids ought to be able to stomach the sudden outage of one.