Greg, I don't know if AV expects a cut. My guess is that the installer gets all of the money, because the installer is acting as an independent contractor, not an employee or a franchise operator.
AV may get their $ from Nissan, and possibly by charging for the installer training (on specifics of the charger, a 30A 120/240 circuit) and from selling (or leasing) the charger tester to the installer.
Cliff
