Wind and solar energy are very poor investments. The excessive cost is hidden by subsidies and propaganda.
Wind and solar are not cost effective for reducing CO2 emissions. There are much better ways.
Wind and solar have to be backed up by conventional power plants, because the production of electricity is unpredictable.
The promoters of wind and solar are people with something to sell and people caught up in a green dream. The public has been fooled into thinking that wind and solar are good ways of generating electricity.