Over the past three years, Eversource customers paid on average $450 each to replace old utility poles, lines and other apparatus across Connecticut. Following the prolonged blackouts that Isaias left behind, many have called for utilities to better armor the rickety electrical grids operated by Eversource and United Illuminating. Lawmakers and regulators are left again with the question of whether to spend more, through utility bills and other means, to better protect and secure the overhead lines that deliver electricity from substations across Connecticut, or bury more of them underground to put them out of harm’s way. In its annual report released earlier this year, Eversource described its Connecticut grid as comprising 17,000 miles of overhead lines with an additional 6,700 miles below the streets — nearly enough to circle the planet if strung together.
https://www.ctinsider.com/business/thehour/article/Overhead-underground-or-boots-on-the-ground-15486260.php