FOCUS QUESTION Description of the building product CITATION http://whatis.techtarget.com/definition/solar-power NOTES Definition: Solar is an energy efficient device that collects the sun’s light on the day then convert it to energy for use PV; photovoltaic are also called solar cells, It is used to convert sunlight directly into electricity. The name PV comes from the process of converting light (photons) to electricity (voltage), this is called the PV effect. Reflection Relevance for task FOCUS QUESTION Attributes that lead to energy efficiency CITATION https://en.wikipedia.org/wiki/Solar_cell_efficiency NOTES The efficiency of the solar cells used in a photovoltaic system, in combination with latitude and
The amount of radiation hitting the earth in three days is the same amount stored in all fossil energy. Solar energy is a free resource that produces new ideas. The first use of solar power was to produce heat. A scientist Horace built the first thermal solar collector in 1767, which was later used to heat water and cook food. The first commercial patent for a solar water heater went to Clarence Kemp of the US in 1891.
In 1839, a French physicist Edmund Becquerel proposed that few materials have the ability to produce electricity when exposed to sunlight. But Albert Einstein explained the photoelectric effect and the nature of light in 1905 . Photoelectric effect state that when photons or sunlight strikes to a metal surface flow of electrons will take place. Later photoelectric effect became the basic principle for the technology of photovoltaic power generation. The first PV module was manufactured by Bell laboratories in 1954 .
• Numerous such devices can be connected in series to increase the output voltage or in parallel to increase the max. Deliverable current. Large arrays of Seebeck-effect devices can provide useful, small-scale electrical power if a large temperature difference is maintained across the junctions. • The Seebeck effect is responsible for the behaviour of thermocouples, which are used to approximately measure temperature differences or to actuate electronic switches that can turn large systems on and off. This capability is employed in thermoelectric cooling technology.
This is a compact way to produce energy because of a solar module. A solar module is a packaged and connected room of solar cells. Many people use them to power houses, street lights, calculators, road signs, and much more. Albert einstein found out the theory of the photoelectric effect in the year 1905. In 2014 the United States alone added about 14
Antireflection coating became an integral part of designing different types of solar cells. Reflections can be minimized in certain wavelengths thus result in higher overall efficiency. In order to understand the working principle behind antireflection coatings, we must first understand the nature of light and it’s interaction with other materials. It is of utmost importance for solar cell designers and researchers to understand both the particle and wave nature of light in order to design a high efficiency solar cell. The Sun’s energy which radiates into the Earth’s surface and harnessed by solar cells are composed of broad spectrum of electro-magnetic (EM) waves combined together which form visible light that have different power densities depending on the wavelength of propagation.
Solar Panels made from photovoltaic cells ( PV). Simply broken-down photo means light and voltaic related to the production of electricity. Solar Photovoltaic (PV) technology enables the creation of electricity using light intensity. PV cells have at least two layers of semiconductors, one that's positively charged, and one is negatively charged. When the light shines on the semiconductor material the electric field across the junction between these two layers causes electric current to flow.
Solar panels are made of photovoltaic cells, what convert sunlight into direct current electricity throughout the day. And that energy moves to inverter, this device converts the direct current electricity what generated by the solar panels into the alternating current electricity. After generated, the energy goes to electrical panel. The electrical panels is also called as breaker box. The alternating current electricity is sent to electrical panel to power our lights and
The concentrating solar power plants are converting the sun’ energy into the high temperature heat. The other part of the concentrating solar power is converting the solar energy into heat while the other part converts the solar energy into electricity. The concentrating solar power plants with the large scale are used in concentrating the sunlight by reflection which is opposed to the sunlight refraction. The concentrating solar power is ranging from small kW to the hundreds of MW.The first concentrating solar power was used in California. Most of the concentrating solar power which was installed is
Star Energy Partners stated that “renewable energy offers stable prices and a clean, continual source of energy. Renewable energy is dependable” (“Pros and Cons”). Unlike fossil fuels, renewable energy prices do not fluctuate like their counterparts. As deposits of oil and coal run out, prices will go up as they begin to search for new plants. Most oil sight reserves only last about 25 to 30 years, and then they have to move to a new location (“Non-Renewable”).