In 2015 my city had a prolonged bout of extreme cold and snow, and a pipe burst in the building my company leases. The leak was directly above the main transformer for the building, which shorted and exploded, causing a fire. I got The Mother Of All Texts at 5am from my lab monitoring systems screaming that every fucking thing had switched to UPS power or was offline.

I raced into work in a blizzard and started our shutdown/tie-in protocol. The building owners ended up renting a truck-mounted generator for a week and parking it in the loading dock to provide emergency heating, emergency lights, and emergency power for critical equipment.