this will be rambling, however, I make about 17,400 kwh/year (17.4 megawatt hours) and have made from free fuel, around 45 megawatt hours.
this is about 1.6x my exorbitant needs (pool heater , all LED’s lighting, A/C) so i daily send an excess to the grid
I pay a minimum of $260.28/year as my occupancy permit requires grid connection.
shared resources and the common good
when i rarely need electricity i buy retail price (8.3 cents/kwh) but sell at wholesale cost (2.3 cents per kwh) (rough numbers)
however the grid needs maintenance during this probably 25 year transition so the money comes from somewhere (there were virtually no PV arrays in the neighborhood 7 years ago, now popping up weekly and same or larger whole roof probably 12 - 15kw or larger, all that’s needed is some software and probably could have megawatt VPP in the neighborhood
Everyone of these PV arrays is changing the revenue stream from (mine was around $110/month, others higher) to $21.69/month, a massive drop and accelerating
download the BP statistical review of energy and look at the PV growth curve and the LLNL Sankey graphs of energy flow from 10-12 years ago and recently and look at the growth of Solar (and wind)
massive, inexorable, changes in revenue streams and accelerating as costs of use drop (PV, $1,600/watt 1956, $101/watt 1974, now maybe 50cents)