Quote Originally Posted by compn View Post
detroit's grid is older than the suburbs grid.
thats why it goes down more and for longer periods of time.
If you look at the picture I just added to the first post the outages in the City of Detroit are not nearly as bad as the burbs.

This is kind of like 'earthquakes don't kill people, buildings do'. In the case of Michigan with power, it is the trees that do the knocking out. Maybe Detroit is more clear cut overall than elsewhere.

As for cost, maybe requiring all new transmission to go underground would be a start. Also anything that is critical infrastructure should be considered for hardening and even an alternate grid, like traffic-control, public safety facilities, gas stations and other aspects that are needed for faster recovery.