Renewable energy reduces our emissions Emissions that cause Climate Change Emissions that endanger our children |
The use of Solar energy can be quite nice to look at. You can see here Solar electric cells + Solar hot water heating panels. |
B+S+B photovoltaic + wind turbine
Light to electricity = photovoltaic
Solar power - also known as solar energy)is the technology of obtaining usable energy from the light of the sun.Solar energy has been used in many traditional technologies for centuries. The name derives from the Greek word 'phot' what means light and from the unit for electrical current volt which was named after the Italian Alessandro Volta. Light to electricity = photovoltaic Photovoltaics on a roof Sunlight is Earth's primary source of energy. The solar constant is the amount of power that the Sun deposits per unit area that is directly exposed to sunlight. The solar constant is ~1,370 watts per square meter or ~1273 watts per 10 square feet How does photovoltaic work? The direct conversion of light into electricity at the atomic level is called photovoltaics. The photoelectric effect can cause some materials to absorb photons of light and release electrons = electricity. In 1839, the French physicist, Edmund Bequerel, was the first, who worked with materials that produced small amounts of electric current when exposed to light. In 1905, Albert Einstein described the nature of light, the photoelectric effect . Einstein won a Nobel prize in physics. In 1954, Bell Laboratories have built the first photovoltaic module. It was billed as a solar battery but too expensive to find a market. |
No comments:
Post a Comment