Many people support wind and solar energy because they believe it replaces an equal amount of reliable energy in the form of coal, nuclear, natural gas, and in some areas of the country, hydroelectric. They generally understand solar energy is not available at night and on cloudy days, and that wind turbines do not provide energy when the wind doesn’t blow. Some even recognize if the wind blows too hard, the turbines must be shut down or the motors fail.
This means each unit of alternative energy deployed must be backed up, or tended, by an equal unit of reliable energy. The consequence of this scientific reality is that wind and solar energy does not add to overall system capacity value, it actually reduces the capacity value of the grid and lessens the ability to meet demand. This has already led to system outages in