Whitenuckler
Minister of Fire
Gthomas is correct. If you can get a hardwired remote start generator the ATS (230/115 Loads?) or a 115V one, it will switch over using the generator power. There is a delay before asking for a generator run. All the loads need to be connected to one panel.Generator power is used to switch the ATS. Typically when utility power is lost the ATS will close a contact that tells the automatic generator to start. If your gen is manual start the ATS will just chill like that until it is started. Once the ATS has power coming from the generator, it will switch over.
And yeah the reason utilities want to control your battery system is for peak shaving. Managing peak demand is normally a huge expense for utilities and they will pay good money to be able deploy your battery during high peaks.