Solar energy
Solar energy (solar energy) refers to the use of solar radiation from the heat and heat is being developed by a series of technologies such as solar thermal collectors, solar photovoltaic power generation, solar thermal power generation, and artificial photosynthesis. Since the earth is the main body of the sun to provide heat and light to survive, and since ancient times humans also know how to sun dry objects, and as a way to save food, such as salt and salted fish and so on. But in the fossil fuel reduction, it is only interested in the further development of solar energy. Solar technology is divided into active (active) and passive (passive) two. Examples of active solar photovoltaic and photothermal conversion, the use of electricity or mechanical equipment for solar energy collection, and these devices rely on external energy operation, so called active. Passive examples of the introduction of sunlight in the building for lighting, which is the use of building design, the choice of materials used to achieve the purpose of using solar energy, because the operation does not need to provide energy from the outside, so called passive The ...