Of course what you are ignoring is even if it is a non profit, it still takes massive amounts of money to operate. You have to pay administration, you have to pay paper pushers, you have to pay for the workers in the field, you have to pay for all the equipment. You all are still advocating for people who have solar to use that system, contribute to its wear and tear, and to have the benefits in emergency situations and basically pay nothing for it.
So we institute a system where anybody who has solar gets to have the electric company/co-op "store" their surplus electricity....hell I am sure you all want them to profit as well. So anybody who can afford it installs solar (i.e. homeowners with money) so who is left footing the bill for the operation and upkeep of the grid? People who can't afford solar and who don't own their homes (i.e. the poor)
SOMEBODY has to pay for it and if some are exempt, then others pay more. Doesn't matter if it's a private company, a co-op, or government run