Not able to provide energy during the night/calm days
Not energy dense - require enormous amount of land that can be put to better use
Rely on battery storage - huge fire and explosion hazard
Need to be replaced and serviced much more often - the lack of density means that repair and maintenance crew have a lot of ground to cover
Energy output wildly fluctuates due to weather conditions.
Renewables have their place, but they cannot sustain the entire grid. At this point, going all in on renewables means either prolonging fossil fuel usage, or condemning vast swaths of the population to brownouts and energy poverty.