While our power system is getting old, it's prohibitively expensive to upgrade it.
To the tune of $100 more per month per power customer.
Above-ground lines are vulnerable to lashing winds and falling trees, but relocating them underground involves huge costs — as much as $15 million per mile of buried line — and that gets passed onto consumers.
"It's a system that from an infrastructure point of view is beginning to age, has been aging," said Gregory Reed, a professor of electric power engineering at the University of Pittsburgh. "We haven't expanded and modernized the bulk of the transmission and distribution network."