Solar Panel Issues Include
- Solar energy is not available 24 hours a day
- Cloudy weather reduces solar output
- Dust on solar panels reduce the power output
- As temperature of the solar panel increase their efficiency decreases
Wind Power Issues Include
- Wind energy is not available 24 hours a day
- Wind power must be stored or put into a dummy load otherwise the generator will break.
- Wind strength is variable.
- Bird and bat strikes
Alternative energy strengths
- Geographically distributed alternative energy improves its overall availability
- Alternative energy into the electricity grid eliminates the need for local storage
- Solar thermal energy can be stored in salt ponds to extend operating hours.
- Excess alternative energy can be used for peaking power plants such as 2 level dams and hydro electricity.
- Solar energy output and grid energy demand both closely follow temperature in warm climates. E.g. above 18 degrees Celsius.