Wind and solar are dumb because they cost too much. They are heavily subsidized by the taxpayers and utility customers. There are better solutions for the environment.
Wind and solar are erratic sources of electricity. Solar stops when a cloud passes in front of the sun or the sun sets. Wind fades when the wind is weak. Thus wind or solar must be backed up by other generating plants, most commonly natural gas generating plants. The backup plants must ramp up and down to compensate for the ups and downs of the erratic wind or solar power. Wind and solar do not replace existing generating plants and are not a substitute for adding traditional generation when demand increases. They are erratic and can't be counted on. The consequence is that the only economic contribution of wind or solar is to reduce fuel consumption in the backup plants when the wind or solar is actually generating electricity. Wind and solar are highly subsidized – 75% subsidized for utility solar and 90% subsidized for rooftop solar.
The book, Dumb Energy, exposes the fraud of wind and solar energy and explains why they are a danger to the electric grid