Correct Answer - Option 3 :
50 to 75% full load
Baseload is the level that it typically does not go below, that is, the basic amount of electricity that is always required. Baseload is typically provided by large coal-fired and nuclear power stations. They may take days to fire up, and their output does not vary.
Examples of baseload power plants are:
- Nuclear power plant
- Coal power plant
- Hydroelectric plant
- Geothermal plant
- Biogas plant
- Biomass plant
- Solar thermal with storage
- Ocean thermal energy conversion
Peak load is the daily fluctuation of electricity use. It is usually lowest in the morning and highest in the early evening. It also varies seasonally. Peak load, the variable part of the electrical supply and demand, is provided by more responsive and smaller plants whose output can be quickly ramped up and down or that can even be quickly turned on and off.
Examples of peak load power plants are:
- Gas plant
- Solar power plants
- Wind turbines
- Diesel generators
- Storage type hydro plants
- Pumped storage hydropower plants
Generators of base load plants are usually designed for maximum efficiency at full load and generators of peak load plants are usually designed for maximum efficiency at 50 to 75% full load.