- published: 07 Nov 2013
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Photovoltaics (PV) is the name of a method of converting solar energy into direct current electricity using semiconducting materials that exhibit the photovoltaic effect, a phenomenon commonly studied in physics, photochemistry and electrochemistry. A photovoltaic system employs solar panels composed of a number of solar cells to supply usable solar power. The process is both physical and chemical in nature, as the first step involves the photoelectric effect from which a second electrochemical process takes place involving crystallized atoms being ionized in a series, generating an electric current. Power generation from solar PV has long been seen as a clean sustainable energy technology which draws upon the planet’s most plentiful and widely distributed renewable energy source – the sun. The direct conversion of sunlight to electricity occurs without any moving parts or environmental emissions during operation. It is well proven, as photovoltaic systems have now been used for fifty years in specialized applications, and grid-connected PV systems have been in use for over twenty years. They were first mass-produced in the year 2000, when German environmentalists including Eurosolar succeeded in obtaining government support for the 100,000 roofs program.
Solar may refer to:
A photovoltaic system, also solar PV power system, or PV system, is a power system designed to supply usable solar power by means of photovoltaics. It consists of an arrangement of several components, including solar panels to absorb and convert sunlight into electricity, a solar inverter to change the electric current from DC to AC, as well as mounting, cabling and other electrical accessories to set up a working system. It may also use a solar tracking system to improve the system's overall performance and include an integrated battery solution, as prices for storage devices are expected to decline. Strictly speaking, a solar array only encompasses the ensemble of solar panels, the visible part of the PV system, and does not include all the other hardware, often summarized as balance of system (BOS). Moreover, PV systems convert light directly into electricity and shouldn't be confused with other technologies, such as concentrated solar power or solar thermal, used for heating and cooling.
See also Photovoltaics
A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon. It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. Solar cells are the building blocks of photovoltaic modules, otherwise known as solar panels.
Solar cells are described as being photovoltaic irrespective of whether the source is sunlight or an artificial light. They are used as a photodetector (for example infrared detectors), detecting light or other electromagnetic radiation near the visible range, or measuring light intensity.
The operation of a photovoltaic (PV) cell requires 3 basic attributes:
Martin Green may refer to:
Associate Professor of Materials Science and Engineering Jeff Grossman explains photovoltaics/solar cells. Video: Emily Heusted
In this video, Mr. Adams explains how PN Junctions are used in silicon photovoltaic devices (solar cells) to create electricity. He attempts to explain a very difficult process in simple, easy to understand terms so that his high school students can better understand photovoltaics. Also, Mr. Adams says silicone, but he really means silicon. They are two different substances. It is just a slip of the tongue.
Lecture Series on Energy Resources and Technology by Prof.S.Banerjee,Department of Electrical Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in.
More on http://solarpv.tv/ - HyperMedia Business Platform In our Exclusive interview in partnership with EU PVSEC 2016, we speak to Professor Martin Green, “father of photovoltaics” about the future of solar PV technology and the role of the European research & industry in shaping this future. During next days we will publish our exclusive interview with Professor Green for our new series “Solar Pioneers in Private”! Martin Andrew Green AM ForMemRS (born 20 July 1948) is an Australian professor at the University of New South Wales who works on solar energy. He is editor-in-chief of the academic journal Progress in Photovoltaics. Martin Green was born in Brisbane and was educated at the selective Brisbane State High School, graduated from University of Queensland and completed his PhD on a...
View full lesson: https://ed.ted.com/lessons/how-do-solar-panels-work-richard-komp The Earth intercepts a lot of solar power: 173,000 terawatts. That’s 10,000 times more power than the planet’s population uses. So is it possible that one day the world could be completely reliant on solar energy? Richard Komp examines how solar panels convert solar energy to electrical energy. Lesson by Richard Komp, animation by Globizco.
MIT 3.021J Introduction to Modeling and Simulation, Spring 2012 View the complete course: http://ocw.mit.edu/3-021JS12 Instructor: Jeffrey Grossman Beginning with a review of problem set six, this lecture overviews climate change, covers solar photovoltaics, solar cells, the electron, how computational QM can impact solar PV, and introduces dye-sensitized solar PV. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Solar Photovoltaic (PV) technology converts the sun’s energy into direct current electricity by using semiconductors. Learn more about Solar PV and all types of energy at www.studentenergy.org
This introduction to solar cells covers the basics of PN junctions, optical absorption, and IV characteristics. Performance metrics such as efficiency, short-circuit current, fill factor, and open-circuit voltage are discussed. Key technology options and economic considers are briefly introduced. on nanHUB: http://nanohub.org/resources/11875
A short introduction to Solar Photovoltaic energy generation
The sun cutter project explores the potential of harnessing sunlight directly to produce objects. the machine is a low-tech, low energy version of a laser cutter. it uses pure sunlight, focused by a ball lens, to repeatedly cut programmed shapes in up to 0.4mm thick plywood as well as paper and card. The project also explores the merit of analogue mechanized production that draws on the machine technology found in pre-digital machinery and automaton. it uses a cam system, moving an x & y- board to control the shape of the cut. the cams are set into synchronized motion by a small solar-powered motor driving a timing belt. Each pair of sunglasses made, even though very similar in shape, is still unique, creating a juxtaposition between the machine-made, repetitive and individual, unique obj...
Honolulu, Hawaii, June 2010. We visited the IEEE Photovoltaic conference with Jess Adams a soon to be PhD from Imperial College London where she was giving the inaugural speech of the conference. Jess talks about the uses of Photovoltaics not only in the fight against climate change but also as a means of bringing energy to remote locations. We then visted Imperial College where Jess showed us the machinary she works with and how the work she does on the next generation of solar cells. This film has animation created in-house explaining the physics of solar power. Filmed in Hawaii and Imperial College London, using Canon 7D & 550D, Sigma 30mm, Tokina 11-16, Canon 18- 135mm. Produced for the Institute of Physics.
A short video that reviews recent global developments in photovoltaic technology and the role of the IEEE Electron Devices Society in this growing field. Features an introduction from Renuka Jindal, PhD, EDS President.
The Podlasie Solar Park is presently the largest investment in photovoltaics in Poland. The whole design assumes the construction of five photovoltaic farms, with total capacity of 5 MW spreading across the area of nearly 10 ha. The investments will be located in Podlaskie Voivodeship, in the towns of Lipsk, Jedwabne, Kolno and Zagroby Zakrzewo. Three photovoltaic farms with total capacity of 3 MW were already commissioned in 2014 including largest photovoltaic installation in Poland of 1,8 MW in Kolno. Podlasie Solar Park jest obecnie największą inwestycją w fotowoltaikę na terenie Polski. Cały projekt zakłada budowę pięciu farm fotowoltaicznych o łącznej mocy około 5 MW i będzie zajmował powierzchnię blisko 10 ha. Inwestycje będą zlokalizowane na terenie województwa podlaskiego, w miejs...
Star Power: New Ways to Harvest Energy From Our Sun Part II: Photovoltaics 11.17.2010 Presenter: Jacob Krich We all use energy to power our lives—to heat our buildings, to drive our cars, to cook our food, to send our emails. Most of this energy comes from fossil fuels (oil, natural gas and coal), but these energy-rich sources have several drawbacks. Coal mining requires destruction of large swaths of land, and oil drilling gone awry can be catastrophic—think of the Gulf Coast! Burning these fossil fuels to harvest energy releases pollutants that contribute to global warming. Fortunately, there are creative minds investigating alternative ways to harvest energy that can be cheaper and more sustainable! Today we will hear about two cutting-edge approaches to ‘capture’ energy from sunlig...
Simulations on the OLCF Titan Supercomputer combined with complimentary Advanced Visualization will enable Rational Design of Organic Photovoltaics. Visualization by Jamison Daniel (ORNL). To learn more, visit https://www.olcf.ornl.gov/2013/08/21/titan-sheds-light-on-unknowns-in-organic-photovoltaic-research/
SAND 2011-4654W
Film de présentation de la société Solveo Energie spécialisée dans les nouvelles énergies - Photovoltaïque... Film presentation of the company Solveo Energy specializes in new energy - Photovoltaics www.solveo-energie.com Diffusion : web & salons Production : W2P Studio Réalisation & Montage : Alban Taravello Cadreur 5D : Guillaume Gaessler Drône : AIRDRONE & Sky Shoot Direction Artistique : Romain Lier Motion,tracking,animation : Laurent Lasserre Création sonore : Chut on vous écoute