Why wind power, photovoltaics, etc. do they develop better than solar thermal?
Solar heat occupies a large area and requires a large amount of water. It has low flexibility but is relatively stable. It basically collects heat to boil the water and the steam turbine operates.
Photovoltaics generate electrical energy through the photoelectric effect and offer the greatest flexibility.
Wind energy is the conversion of potential energy into mechanical energy to produce electricity. Compared with light, wind energy has higher conversion efficiency and higher income.
Generally speaking, the cost of solar thermal is still too high and the land area is too large to overcome water constraints. It is not economically feasible to build in an area where water is scarce in the northwest, and electricitythere is no shortage of it in the northwest. Built in a developed coastal area, the cost of every inch of land is too high to be justified.
Restrictions on photovoltaic and wind energy are much lower. Although photovoltaic power generation hours are low, rooftop fish ponds and the like can be deployed as long as there are no obstructions. Although the wind farm is large in area, except for the small space occupied by the wind turbine foundation and the booster station, it is enough to leave a road for maintenance in other places.
Wind energy. Gansu province is the only place where cold air from northwest China must move eastward without any obstacles. Therefore, the air is dry and the wind is strong in winter and spring, which is conducive to wind power generation. in Gansu province. Wind energy is kinetic energyproduced by the movement of air. A converted form of solar energy. Due to the uneven heating of various parts of the earth's surface caused by solar radiation, the pressure distribution in the atmosphere is unbalanced. Under the action of the horizontal pressure gradient, the air moves in the horizontal direction to form wind.