Residential solar pushes burden onto other non solar customers because the utilities undercharge for connection fees and overcharge per kwh. Realistically, if someone has a $100 electric bill, the utility might charge $10 facility connection fee and $90 for kwh usage and profit, but in reality the utilities costs might be like $60 for the connection fee and $40 for electricity and profit. This means non solar customers are subsidizing solar customers and other light users since they aren't paying their burden of the infrastructure costs.
However, to your point, I would guess the installer should mention that fee. It sounds like it isn't very much though and likely doesn't cover the actual connection costs, just reduces it some.
However, to your point, I would guess the installer should mention that fee. It sounds like it isn't very much though and likely doesn't cover the actual connection costs, just reduces it some.