Shooting of electrical substations
On June 1, 2019, at approximately 2:30 a.m. Pacific Time, unknown suspect(s) using high-caliber firearms shot at a transformer and power regulators at a Mid-State Electric Cooperative substation in Klamath County, Oregon. The “Mowich” substation is located off Highway 58, three miles west of Highway 97. Due to the severe damage caused by bullets striking the substation, approximately 1,000 customers lost power following the attack. The damage is estimated at more than $400,000. To date, no group or person has claimed responsibility for the attack. –FBI.GOV
Sniper attack on Utah substation highlights grid vulnerability
Deseret News reported Sept 2016 that someone with a high-powered rifle fired several shots and successfully disabled a substation owned by Garkane Energy Cooperative, leading to a day-long power outage for about 13,000 Utah residents.
The co-op offered up to $50,000 for information leading to a reward; the damage will take months to repair and could cost up to $1 million.