The only reason your economics are so good for you personally is federal and state laws make it so. Your little power plant needs backup power to get you through the night and times of little solar production. You are not paying for that backup power...the rest,of,us are. You are not paying for your share of the transmission and distribution infrastructure you use...the rest,of us are. Without laws distorting markets, you would NEVER pay what your system fully costs.
Bullspit. I pay $10/month for infrastructure maintenance, because that’s what the Utility proved it costs. I did get a one-time Federal tax credit, but even without it I would still be paying about 10% less than my previous bill, and locked constant while the power rates will increase at minimum 5% per year. I got ZERO tax credit from the State.
Rooftop solar is a moneymaker for the Utility currently, as it allows deferral of construction for increased capacity. Solar provides daytime power when it is needed throughout the grid, and my house uses baseline grid capacity at night. Without an increased daytime influx from rooftop solar, the Utility would have to increase baseline capacity, much of which would be idled at night.
Rooftop solar will be especially beneficial when they shut down the last remaining nuclear power plant in California in a couple of years with much lower construction cost for a smaller natural gas replacement.