the real cost of a solar energy

 https://www.construction-physics.com/p/can-we-afford-large-scale-solar-pv

We found that due to solar’s intermittency, supplying large fractions of electricity demand requires a fair degree of “overbuilding” (solar panel capacity well in excess of total electricity demand), as well as a fair amount of storage. For a single family home where power demand never exceeds 10 kilowatts (and most of the time is below 2 kilowatts), supplying 80% of annual electricity consumption requires at least 13.7 kilowatts of solar panels, and 40 kilowatt-hours of storage. And supplying even higher fractions of electricity demand — 90%, 95%, 99% — the infrastructure requirements gets even more burdensome. Going from 80 to 90% of electricity supplied requires nearly doubling solar panel capacity