Residential solar today is a blip, not significant, that could change. The charts are on the grid.
Roughly 100 miles needs 30 KwHrs of electricity. That could improve some, but we're probably near max on it.
The math problem on "wind and solar" is really eye opening, I think. If in time rooftop solar became say 50% of houses, we might have something IFF the system had capacity to run AC and else while also charging batteries.
With installation, an average residential 5kW size system costs between $3 and $5 per watt, according to the CSE, which results in the $15,000 to $25,000 range. That cost is before any tax credits and incentives. If you know your current energy usage, you can calculate how much you'll need to pay for solar panels.
