There's an element of intrinsic redundancy. Most solar panels can withstand considerable impact damage with only a modest loss of efficiency. The loss of a pane

There's an element of intrinsic redundancy. Most solar panels can withstand considerable impact damage with only a modest loss of efficiency. The loss of a panel doesn't knock out the whole array. On a community level, losing power in some fraction of your buildings is much less disastrous than being knocked off the grid.