Both wind power and photovoltaic power generation are time-sensitive and accidental. If it is cloudy or the wind stops, wind power and photovoltaic power generation will have to stop, but the load cannot stop, so the power grid must immediately start the thermal power units to fill the gap, but it will stop completely. It takes several hours for a thermal power generation unit to start up, so in order to be able to fill the gap immediately, some units need to operate at a small load to be able to cope with this situation. However, these capacities are limited, so the power grid must limit the power generation of wind power and photovoltaic power according to the reserve capacity
Why the grid limits the amount of electricity generated by wind and photovoltaic plants
Introduction Why does the power grid limit the power generation of wind power plants and photovoltaic power stations? Wind power and photovoltaic power generation are both time-sensitive and contingency. If it is cloudy or the wind stops that day, wind power and photo