Duggan proposes solar panels on Detroit's vacant land

[Rocket]

The biggest problem with wind and solar remains energy storage.

You simply CANNOT have something generating variable amounts of power connected to a grid. It's not like gasoline that neatly stores in a tank. Storing wind and solar energy for use in the evening or to charge your car when you get home from work costs exponentially more than the wind and solar generators themselves.

On a small scale, their variability can be absorbed into the system without to much trouble. But as more and bigger installations come online, it becomes a disaster.

Then power companies have to build natural gas plants to try to dampen the effects of wind and solar's variability.

Germany has experienced something like this recently. They are reopening 6.9 gigawatts of coal fired plants and 1.9 gigawatts of lignite power plants to have enough capacity after trying to switch to "green" energy from nuclear, [nuclear being BY FAR the cleanest energy yet devised by man.]