Adding an ATS/MTS may be a good design choice, service rated, or as Greg mentioned a compliant lockout and backfed.
There are a lot of generator permit apps rolling in here after the recent storms. Whole house setups, and manual backfed setups with a twistlock inlet for gen connections.
A few comm buildings are and have been preping with tap boxes for cam lock connections, with transfer equip ranging from auto to manual with 'Kirk Keys' lockout.
An issue that has come up recently (pre-storms) is the capacity of the natural gas utility systems to handle the influx of whole house, natural gas gens!
There are two apps for whole house gens powered by compressed natural gas, awaiting reviews by Fire, Zoning before they get to me. I wonder where ya get CNG?
