I still think the minimum fee should be based on the size of the main breaker.
200 amp house should pay more than a 60 amp apartment. $10 vs $3?
It is all about installed infrastructure right?
What if you could downgrade to a 20 amp main with any surge coming from a Power Wall etc.
This should allow the utility to stop upgrading.
Of course a business with 1,000 amps and 600 volt service would have a huge minimum to carry the cost to guaranty power at that level.