Definitions for photovoltaics
ˌfoʊ toʊ vɒlˈteɪ ɪks, -voʊl-pho·to·voltaics

WiktionaryRate this definition:0.0 / 0 votes

1. photovoltaicsnoun

   The technology of the conversion of sunlight into electricity using semiconductors that exhibit the photovoltaic effect.

WikipediaRate this definition:0.0 / 0 votes

1. Photovoltaics

   Photovoltaics (PV) is the conversion of light into electricity using semiconducting materials that exhibit the photovoltaic effect, a phenomenon studied in physics, photochemistry, and electrochemistry. The photovoltaic effect is commercially used for electricity generation and as photosensors. A photovoltaic system employs solar modules, each comprising a number of solar cells, which generate electrical power. PV installations may be ground-mounted, rooftop-mounted, wall-mounted or floating. The mount may be fixed or use a solar tracker to follow the sun across the sky. Photovoltaic technology helps to mitigate climate change because it emits much less carbon dioxide than fossil fuels. Solar PV has specific advantages as an energy source: once installed, its operation generates no pollution and no greenhouse gas emissions, it shows scalability in respect of power needs and silicon has large availability in the Earth's crust, although other materials required in PV system manufacture such as silver may constrain further growth in the technology. Other major constraints identified are competition for land use. The use of PV as a main source requires energy storage systems or global distribution by high-voltage direct current power lines causing additional costs, and also has a number of other specific disadvantages such as variable power generation which have to be balanced. Production and installation does cause some pollution and greenhouse gas emissions, though only a fraction of the emissions caused by fossil fuels. Photovoltaic systems have long been used in specialized applications as stand-alone installations and grid-connected PV systems have been in use since the 1990s. Photovoltaic modules were first mass-produced in 2000, when the German government funded a one hundred thousand roof program. Decreasing costs has allowed PV to grow as an energy source. This has been partially driven by massive Chinese government investment in developing solar production capacity since 2000, and achieving economies of scale. Improvements in manufacturing technology and efficiency have also led to decreasing costs. Net metering and financial incentives, such as preferential feed-in tariffs for solar-generated electricity, have supported solar PV installations in many countries. Panel prices dropped by a factor of 4 between 2004 and 2011. Module prices dropped by about 90% over the 2010s. In 2019, worldwide installed PV capacity increased to more than 635 gigawatts (GW) covering approximately two percent of global electricity demand. After hydro and wind powers, PV is the third renewable energy source in terms of global capacity. In 2019 the International Energy Agency expected a growth by 700–880 GW from 2019 to 2024. In some instances, PV has offered the cheapest source of electrical power in regions with a high solar potential, with a bid for pricing as low as 0.01567 US$/kWh in Qatar in 2020. In 2020 the International Energy Agency stated in its World Energy Outlook that ‘[f]or projects with low cost financing that tap high quality resources, solar PV is now the cheapest source of electricity in history.

WikidataRate this definition:0.0 / 0 votes

1. Photovoltaics

   Photovoltaics is a method of generating electrical power by converting solar radiation into direct current electricity using semiconductors that exhibit the photovoltaic effect. Photovoltaic power generation employs solar panels composed of a number of solar cells containing a photovoltaic material. Materials presently used for photovoltaics include monocrystalline silicon, polycrystalline silicon, amorphous silicon, cadmium telluride, and copper indium gallium selenide/sulfide. Due to the increased demand for renewable energy sources, the manufacturing of solar cells and photovoltaic arrays has advanced considerably in recent years. Solar photovoltaics is a sustainable energy source. By the end of 2011, a total of 67.4 GW had been installed, sufficient to generate 85 TWh/year. And by end of 2012, the 100 GW installed capacity milestone was achieved. Solar photovoltaics is now, after hydro and wind power, the third most important renewable energy source in terms of globally installed capacity. More than 100 countries use solar PV. Installations may be ground-mounted or built into the roof or walls of a building.

How to pronounce photovoltaics?

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How to say photovoltaics in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of photovoltaics in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of photovoltaics in Pythagorean Numerology is: 4

Examples of photovoltaics in a Sentence

1. John Rogers:

   We are excited about the fact that these simple ideas and schemes provide immediate paths to broad and previously inaccessible classes of 3D micro- and nano-structures in a way that is compatible with the highest-performance materials and processing techniques available, we feel that the findings have potential relevance to a wide range of microsystems technologies biomedical devices, optoelectronics, photovoltaics, 3D circuits, sensors and so on.

2. Henry Snaith:

   If we want to make it that all new power generation is solar photovoltaics, then we need to keep driving the price down, one way to do that is to keep pushing the efficiency or the power output of the module up, and this is where perovskites really come into play.

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References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Photovoltaics
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Photovoltaics
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=photovoltaics