Problem(s) Encountered:

 There's a high-pitched alarm from a large white box outside the building labeled Generac.  Noticed around 1 am after a couple rain storms.  Power seems normal in building.

Solution:

This is the 1.3m facilities backup generator.  I believe there is a missing or damaged tooth on the flywheel.  This causes starting issues from time to time.  To clear the alarm and reset the generator, open the first panel on the left when approaching the generator (side closest to the garage).  Near the top-right, there is a 3-position dial.  Turn it from AUTO to OFF and wait 20 seconds.  Then turn it back to AUTO.