Solar photovoltaic
A photovoltaic panel assembly is a power generating device that produces direct current when exposed to sunlight, consisting of a solid photovoltaic cell made almost entirely of semiconductor material, such as silicon. Since there is no active part, it can be operated for a long time without causing any loss.
Simple photovoltaic cells provide energy for watches and computers, and more complex photovoltaic systems provide illumination for homes and grids. Solar energy utilizing components can be made in different shapes, and the components can be connected to generate more electrical energy. In recent years, photovoltaic panels have been used on rooftops and building surfaces, and even as part of windows, skylights or shelters, which are often referred to as photovoltaic systems attached to buildings.
According to the survey, due to overcapacity, the profits of the world's top five manufacturers have shrunk. The installed capacity of PV modules will decrease in 2012, which is the first decline in more than 10 years. According to an average of 6 analysts at Bloomberg, global home and business organizations will install 24.8 GW of PV modules. This is equivalent to about 20 nuclear reactors, but it is down 10% from the 27.7 GW of PV installed last year. According to Bloomberg New Energy Finance, the average annual installed capacity has increased by 61% since 1999.
Solar thermal
Modern solar thermal technology polymerizes sunlight and uses its energy to produce hot water, steam and electricity. In addition to using appropriate technology to collect solar energy, buildings can also use the sun's light and heat by adding suitable equipment to the design, such as giant south-facing windows or building materials that absorb and slowly release solar heat. .
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