Solar power generation is rapidly finding a prominence as a major part of power in the modern world. There are various problems associated with the tapping of Sun?s energy, such as movement of Sun. Researches has been going on to find new and efficient method to harness the solar power.
Commonly the solar panel is placed above the Earth?s surface facing the sun tilted at an angle of 450.But there is a problem, we can get maximum output from the panel only when the Sun comes perpendicular to the face of the panel. In late morning or afternoon, we cannot get maximum output from the panel. Thus for maximum utilization of the Sun through out the day, the panel must be kept perpendicular to the sun. This is possible only by tracking the sun
In this paper, I will be dealing with
Some aspects of solar power generation technique
An Automatic Solar Tracking System.
Let explain on solar syatems,
A solar updraft tower (also known as a solar chimney or solar tower) consists of a large greenhouse that funnels into a central tower. As sunlight shines on the greenhouse, the air inside is heated, and expands. The expanding air flows toward the central tower, where a turbine converts the air flow into electricity. A 50 kW prototype was constructed in Ciudad Real, Spain and operated for eight years before decommissioning in 1989.
Thermoelectric, or "thermovoltaic" devices convert a temperature difference between dissimilar materials into an electric current. First proposed as a method to store solar energy by solar pioneer Mouchout in the 1800s, thermoelectrics reemerged in the Soviet Union during the 1930s. Under the direction of Soviet scientist Abram Ioffe a concentrating system was used to thermoelectrically generate power for a 1 hp engine. Thermogenerators were later used in the US space program as an energy conversion technology for powering deep space missions such as Cassini, Galileo and Viking. Research in this area is focused on raising the efficiency of these devices from 7–8% to 15–20%.
Finally, Space-based solar power is a theoretical design for the collection of solar power in space, for use on Earth. SBSP differs from the usual method of solar power collection in that the solar panels used to collect the energy would reside on a satellite in orbit, often referred to as a solar power satellite (SPS), rather than on Earth's surface. In space, collection of the Sun's energy is unaffected by the day/night cycle, weather, seasons, or the filtering effect of Earth's atmospheric gases. Average solar energy per unit area outside Earth's atmosphere is on the order of ten times that available on Earth's surface. However, there is no shortage of energy reaching the surface. The amount of solar energy reaching the surface of the planet each year is about twice the amount of energy that will be obtained forever from coal, oil, natural gas, and mined Uranium, combined, even using breeder reactors.