IIRC the video mentioned lowering the voltage 8%... a brownout?
On the lower end of the range, but a brownout.
Meanwhile, for anyone else curious and per AI, FWIW...
“Cooling Madison Square Garden (MSG) on a 90°F day requires an estimated 2.5 to 3.5 megawatts (MW) of electricity per hour during peak daytime demand, which translates to roughly 60,000 to 84,000 kilowatt-hours (kWh) of electricity over a 24-hour period.
Because Madison Square Garden is an enormous, heavily populated indoor arena, cooling it on an exceptionally hot summer day relies on an industrial-scale, automated climate-control system...”