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luminous:glossary [2008-02-23 13:10] – takufoam | luminous:glossary [2008-02-24 15:33] (current) – nik | ||
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===== PhoEf glossary ===== | ===== PhoEf glossary ===== | ||
+ | |||
+ | **1 megawatt peak of pv-modules: | ||
**3D-Solar Cell:** capture photons from sunlight using an array of miniature “tower” structures that resemble high-rise | **3D-Solar Cell:** capture photons from sunlight using an array of miniature “tower” structures that resemble high-rise | ||
buildings in a city street grid. Animation on: www.gatech.edu/ | buildings in a city street grid. Animation on: www.gatech.edu/ | ||
- | **Amp:** short for ampere, the unit used to measure the instantaneous flow of electrons, theoretically, | + | **Amp:** short for ampere, the unit used to measure the instantaneous flow of electrons, theoretically, |
**Amp-hour: | **Amp-hour: | ||
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**Balance of System** (components): | **Balance of System** (components): | ||
- | **Base load electricity: | + | **Base load electricity: |
+ | |||
+ | **Clean energies:** Clean describes any energy source the exploitation of which does not generate significant amounts of pollution, and therefore negatively impact the health of human populations and the biosphere as a whole. | ||
- | **Current: | + | **Current: |
**Distributed energies:** Distributed describes any energy source that can be deployed – often rapidly - on small, medium or large scales close to the point of consumption. | **Distributed energies:** Distributed describes any energy source that can be deployed – often rapidly - on small, medium or large scales close to the point of consumption. | ||
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**Inverter: | **Inverter: | ||
- | **KW:** kiloWatt. | + | **KW:** kiloWatt. |
**kWh – kiloWatt hour:** labor done by letting work 1000 Watt during 1 hour. | **kWh – kiloWatt hour:** labor done by letting work 1000 Watt during 1 hour. | ||
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**Lumens:** an exact measure of quantity of light. A 60-watt incandescent light bulb and an 18-watt compact fluorescent light bulb each produce about 1,000 lumen. | **Lumens:** an exact measure of quantity of light. A 60-watt incandescent light bulb and an 18-watt compact fluorescent light bulb each produce about 1,000 lumen. | ||
- | |||
- | **1 megawatt peak of pv-modules: | ||
**MPP- tracking - Maximum Power Point Tracking:** - a transformer has to deliver the max. power at all possible light circumstances which goes with a certain voltage delivered by the panel. This voltage depends on the amount of light falling on the panel. Power is the product of voltage and current and hence at a given voltage there is a specific current. At every voltage there is an optimal current (maximum power point). In the inverter the electronic parts look under every circumstances this optimal point: MPP-tracking | **MPP- tracking - Maximum Power Point Tracking:** - a transformer has to deliver the max. power at all possible light circumstances which goes with a certain voltage delivered by the panel. This voltage depends on the amount of light falling on the panel. Power is the product of voltage and current and hence at a given voltage there is a specific current. At every voltage there is an optimal current (maximum power point). In the inverter the electronic parts look under every circumstances this optimal point: MPP-tracking | ||
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**Solar (ir)radiation: | **Solar (ir)radiation: | ||
- Daily total solar irradiation: | - Daily total solar irradiation: | ||
- | | + | |
**Solar wind:** A stream of particles, mostly electrons and protons, flowing out from the Sun at speeds of 5-10 km/s. As it flows out, the solar wind accelerates and can reach speeds as high as 900 km/s. The solar wind is the result of the hot solar corona expanding into space. | **Solar wind:** A stream of particles, mostly electrons and protons, flowing out from the Sun at speeds of 5-10 km/s. As it flows out, the solar wind accelerates and can reach speeds as high as 900 km/s. The solar wind is the result of the hot solar corona expanding into space. | ||
Sun-Earth distance: varies during the year, but on average it is approximately 150,000,000 km or 93,000,000 miles. | Sun-Earth distance: varies during the year, but on average it is approximately 150,000,000 km or 93,000,000 miles. | ||
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**Ultra Violet-Light (UV):** means " | **Ultra Violet-Light (UV):** means " | ||
- | **Wp - Watt-piek:** Max. theoretical power of a solar panel with a surface of 1m², measured at a temperature of 25°. A standard measure (unit) being used to compare the power of different solar panels. In practice a solar panel reaches in general only 80% of the Watt-piek power. | + | **Wp - Watt-peak:** Max. theoretical power of a solar panel with a surface of 1m², measured at a temperature of 25°. A standard measure (unit) being used to compare the power of different solar panels. In practice a solar panel reaches in general only 80% of the Watt-peak power. |
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Sources: | Sources: | ||
- | www1.eere.energy.gov/ | ||
- | www1.eere.energy.gov/ | ||
- | www.ngdc.noaa.gov/ | ||
- | www.q-cells.com/ | ||
- | www.sciencedaily.com | ||
- | www.suntrek.org | ||
- | www.wikipedia.org | ||
- | Numerous glossaries on the internet | + | * [[http:// |
- | e.g.: www.bigfrogmountain.com/ | + | * [[http:// |
+ | * http:// | ||
+ | * http:// | ||
+ | * http:// | ||
+ | * http:// | ||
+ | * http:// | ||
+ | * http://www.bigfrogmountain.com/ |