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History of solar energy development

As a new clean energy, Yangneng power generation has gradually been widely used in various fields. I believe that solar water heater is the standard configuration for every household! Who knows the historical origin of solar power generation? In 1839, when the 19-year-old French Becquerel made a physical experiment, he found that when two kinds of metal electrodes in the conductive liquid were irradiated with light, the current would be strengthened, thus "photovoltaic effect" was found

In 1904, Einstein published a paper on photoelectric effect, for which he won the Nobel Prize in 1921

In 1931931930, Langer first proposed to use "photovoltaic effect" to make "solar cell", which is solar energy converted into electric energy; in

In May 1954, Chapin, fuller and Pearson of Bell Laboratories in the United States developed monocrystalline silicon solar cells with an efficiency of 6%. This is the first practical solar cell in the world. In the same year, wicker first found that GaAs has photovoltaic effect, and deposited CDs film on glass to make solar cell. The practical photovoltaic power generation technology of converting solar energy into electric energy was born and developed. The term "photovoltaics" comes from Greek, which means light, volt and electricity. It comes from the name of Italian physicist alexandro volt. After alexandro volt, "volt" is used as the unit of voltage. In the history of solar energy development, the behavior of "electricity from light" caused by light shining on materials was discovered as early as the 19th century. A kind of

In 1849, the term "photo voltaic" appeared in English, which means that light produces electromotive force, that is, light produces volt. A kind of

In 1839, the photovoltaic effect was first discovered by French physicist A.E. Becquerel. A kind of

The first solar cell was made by Charles Fritts in 1883. Charles used a very thin layer of gold on the se semiconductor to form a semiconductor metal junction. The device has only 1% efficiency. By 1930's, the camera's exposure meter widely used the principle of light electricity behavior A kind of

In 1946, Russell OHL applied for a patent for the manufacture of modern solar cells. By the 1950s, with the gradual understanding of the physical properties of semiconductors and the progress of processing technology, the first solar cell with practical application value was born in Bell Laboratories in 1954 when Bell Laboratories in the United States found that it was more sensitive to light after a certain amount of impurities were added into silicon in experiments with semiconductors. The era of solar cell technology is finally coming. A kind of

Since the 1960s, satellites launched by the United States have used solar cells as a source of energy.   during the energy crisis in the 1970s, countries around the world realized the importance of energy development. A kind of

In 1973, the oil crisis occurred, and people began to transfer the application of solar cells to the general purpose of people's livelihood. In the United States, Japan, Israel and other countries, a large number of solar devices have been used, more towards the goal of commercialization. Among these countries, the United States established the world's largest solar power plant in California in 1983, with a capacity of up to 16 million watts. Other countries in South Africa, Botswana, Namibia and southern Africa have also set up special projects to encourage remote rural areas to install low-cost solar cell power generation systems. Japan is the most active country in solar power generation. A kind of

In 1994, Japan implemented the subsidy and reward method to promote the "parallel solar photovoltaic energy system of municipal electricity" of 3000 watts per household. In the first year, the government subsidized 49% of the funds, and later the subsidies decreased year by year. "Solar photovoltaic energy system of parallel connection of municipal power supply" is to provide electric energy by solar cells to their own load when the sunshine is sufficient, and store the extra power separately if there is any. When the generating capacity is insufficient or does not generate electricity, the power needed is provided by the power company. By 1996, Japan had 2600 solar power systems with a total installed capacity of 8 million watts. A year later, there were 9400 units, with a total installed capacity of 32 megawatts. In China, the solar power industry is also strongly encouraged and funded by the government. A kind of
In March 2009, the Ministry of Finance announced that it planned to subsidize large-scale solar energy projects such as solar photovoltaic buildings.


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