As the current technology is immature, the main problem after electricity generation is electricity storage and transmission. Since the voltage of ordinary wind power generation basically depends on the wind speed, that is, the higher the wind speed. the higher the voltage, the lower the wind speed. , the voltage is low, so the wind power generation voltage is unstable and it cannot be directly connected to the power grid for users to use.
The voltage of the wind power Electricity generated by each wind turbine is unstable and must pass. It can only be used with variable voltage.
In addition, current wind power generation equipment has very high equipment requirements, and some require wind power above 5 m/s before they can rotate.
According to EU data, the average hascurrent coal-fired thermal power generation in the world Power supply efficiency is 30%. At this thermal efficiency, the amount of carbon dioxide emitted per kilowatt hour of electricity is 1,160 g/kWh.
But that was many years ago. China's thermal technology was quite powerful, and now it has been reduced by about 0.7 kilograms.
Thermal energy, whether it is a steam turbine burning coal or a gas turbine burning gas, is burned and produces carbon dioxide.
Nuclear power uses the heat generated by decay to operate a steam turbine. There is no combustion or carbon dioxide, but there is nuclear fuel waste.
Wind energy uses the mechanical energy of air movement (wind) to convert it into electrical energy. It is less polluting, without combustion and without carbon dioxide.
The energy of the water is transformed into barrier potential energy, and there is no combustion or carbon dioxide.