I'm not sure I understand how what you say contradicts what the previous poster said? Can you elaborate? I think the point implied in the previous comment was that pushing into a grid locally is much cheaper for the grid operator than distributing power from a far away power plant?
My reimbursement for solar production takes about 6% for transmissions fees. I'm not sure which cost you are worried about but I make infrastructure payments. I don't think the electricity I produce travels more the 200 feet to my neighbors houses.
Well, my question would be whether retail minus 6% would be the prevailing rate in a free market with healthy competition, or is it a subsidy?
I'm not against subsidies. Germany pushing solar well before it made financial sense, enabling the economies of scale we see today, was one of the greatest wins of public policy in the 21st century. I paid a lot of tax when I lived there and was happy to contribute in some small way to that effort.
But subsidies risk turning into middle class welfare, continuing long after they make sense from a public policy point of view because interest groups form that don't want to give them up.
If you look into e.g. PG&E's financials, their expenses are dominated by operation and maintenance of the grid, not what they pay for electricity.
You appear to be claiming that the grid fees cover this cost entirely, but they're not high, e.g. $15/mo on some plans.
You're obviously very knowledgeable about the space, but I suspect you may be talking your book a bit here.