The new field for Green energy: Space solar power stations.
In October 2021, the Central Committee of the Communist Party of China and the State Council issued the "New Development Policy for the Comprehensive Implementation of Carbon Reaching the Peak", which clearly stated that "the proportion of complete non-material energy consumption will reach more than 80% in 2060". This means that, The new power supply system that provides energy in the future will be able to come from new energy sources.
Scientists have proposed the idea of space solar power generation. When it comes to space solar power generation, it refers to simple space solar power generation, and then the solar power is generated, and then the ground power system is launched. Sunlight will not be exposed in space, and according to reports, day and night will not be there on geosynchronous, and in the geosynchronous orbit, the solar power station is in 99% of the orbit, and the earth can stably receive the transmission from the fixed area of the sun.
From technology speaking,there are mainly three technical links in space solar power plant technology, namely energy collection, energy conversion and transmission, and energy reception and utilization. Energy harvesting is mainly accomplished by spacecraft, such as orbiting satellites or space stations. In addition to photovoltaic power generation, the means of energy collection, there is also a technical route that directly converts solar energy into laser energy. There are also many technical routes for energy conversion and transmission. At present, the most discussed methods are microwave and laser transmission. In comparison, microwave conversion and transmission efficiency is high, and the penetration of specific frequency bands is good; its beam is wider, and the size of the transmitting and receiving antennas is large, which is suitable for high-power space-to-earth energy transmission mode.
At present, space solar power generation technology still faces many challenges. But it is also an exciting research topic and development opportunity, and the technology will play an important role in the achievement of the "two-carbon" goal in the future.
