Comparison of terrestrial PV and SPS

assumes
> ground
> PV will be in big facilities linked into the grid or analyzes
> gridless
> local use without grid delivery costs vs. gridded SPS

Gridless local use is uneconomic. The cost of storage is
prohibitive, and the collateral damage of batteries becomes a social
problem.

Storage batteries have limited life, need to be replaced every couple
of years.

I have yet to have a NiCd battery in my home last more than a matter
of months before it basically becomes useless (only holds charge for
about 10 - 20 minutes). My personal experience over 10+ years, and
many batteries.

Most gridless PV systems today use bulky lead-acid batteries, major
disposal problem. Can be recycled, at a cost.