Here's some photos I took a long time ago.
https://www.flickr.com/photos/textfiles/albums/7215763372220...
https://www.flickr.com/photos/textfiles/albums/7215763372220...
What's most surprising is churches notoriously have really sketchy electrical. There had to be some renovation in that regard, right?
Most rooms in North America won't be wired for anything over 2.5 kW by default (kitchens and laundry rooms being obvious exceptions).
An electric dryer might pull 5 kW. An electric range ballpark 10 kW. Versus 15 kW per full rack for a fairly tame setup.
And then you've got the problem of dissipating all that heat.