I was just reading this article about Minnesota’s Metrodome roof being deflated for the last time before the stadium is demolished to make room for a new stadium. What caught my eye were these statements:
Officials from the Minnesota Sports Facilities Authority opened the stadium’s relief vents to begin the deflation at 7:15 a.m. Saturday in downtown Minneapolis. Fans providing the air that supports the roof were turned off.
The muffin-shaped dome opened in 1982 and was once a focal point of Minnesota professional sports.
Wait, they have had to run fans non-stop since 1982 to keep the roof inflated? Even when there is no event going on there? Wow, the utility bill must have been staggering - how inefficient is that?