The vast majority of these 400 heat deaths have nothing to do with the power grid. They are people living outdoors, roofers, elderly, etc. When the temps hit 10

The vast majority of these 400 heat deaths have nothing to do with the power grid. They are people living outdoors, roofers, elderly, etc. When the temps hit 105+ for long periods there are bound to be people who don't have access to AC or overexert themselves outdoors.