Home solar/battery would provide a level of independence for each home and would lessen the load on the grid for air conditioning alone (almost 20% of grid utilization).
At 3x the price it's not a good deal for taxpayers or ratepayers. If homeowners want to do it for independence that's fine but the cost should be on them. I'm fine with giving them a credit for reduced ghg emissions.
Sure, let them pay for it. Perhaps a low interest loan to help incentivize it but theoretically it pays off in 6-9 years and then free power and less grid load, and the loan is paid back.