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Translation glossary: Renewable Energy

Creator:
Kartik Isaac
Kartik Isaac
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InverterUsed to convert direct current (DC) electricity to alternating current (AC), so that it can power domestic 
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Isolation diodeA diode which prevents one segment of a PV array from interacting with another array segment. 
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JJoule. Defined as the amount of work done by a force of one newton moving an object through a distance of one 
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JCTThe Joint Contracts Tribunal, various sets of standard building contract conditions. 
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Kilowatt (kW)The electrical unit of power equal to 1,000 watts. 
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Kilowatt-hour (kWh)The basic unit of electric energy equal to one kilowatt of power supplied to or taken from an 
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kTOEEquivalent to 1000 tonnes of oil. 
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kVAOne thousand volt-amps; similar to one 
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kWh/yearKilowatt hour per year. This can be used in terms of heat output, or the amount of energy needed to heat 
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kWpKilowatt peak is the measure of how much power a photovoltaic system produces from the sun under test 
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LagThe situation in an electrical circuit in 
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Landfill GasGas that is generated by 
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LeadThe situation in an electrical circuit in 
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Leading edgeThe edge of a blade that faces 
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LeewardAway from the direction from which the wind blows. 
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Licence exempt generatorAn electricity generator too small (<100MW) to be required to hold a generation licence. 
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LiftThe force exerted by moving air on asymmetrically-shaped wind generator blades at right angles to the 
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Liquid collectorA medium-temperature solar thermal collector, employed predominantly in water heating, which 
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LoadThe amount of electric power delivered or required at any specified point or points on a system. Load 
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Load factorThe ratio of the average load supplied to the peak or maximum load during a designated period. Similar 
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LossesThe general term applied to energy (kWh) and capacity (kW) lost in the operation of an electric system. 
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Low-temperature collectorsMetallic or nonmetallic solar thermal collectors that generally operate at temperatures 
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Maximum powerAlso referred to as peak power. The point on a device\'s I-V curve where the product of I and V 
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Medium-temperature collectorsSolar thermal collectors designed to operate in the temperature range of 140 
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Megawatt (MW)One million watts. A large coal-fired power station in the UK typically has an installed capacity of 
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Megawatt-hour (MWh)One thousand kilowatt-hours or one million-watt hours. 
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MethaneA gas that is naturally produced when organic matter decomposes. The gas can be collected from sources 
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MicrogenerationThe generation of heat or power by renewable or low carbon means, by individuals, businesses or 
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MiscanthusAlso known as elephant grass, miscanthus is one of the front runners in the search for a commercially 
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MJMegajoule (one thousand kJ). 
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ModuleA number of solar cells electrically connected, protected from environmental stresses, self-contained and 
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MSW (Municipal Solid Waste)Residential solid waste and some nonhazardous commercial, institutional, and 
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MtoeMillion tonnes of oil equivalent. 
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National Terms of ConnectionThe standard terms and conditions governing any electricity supply contract in 
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NECNew Engineering Contract, various sets of standard building contract conditions. 
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Net MeteringArrangement that permits a facility (using a meter that reads 
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NETAThe New Electricity Trading Arrangements introduced in March 2001 for England and Wales, and governed by 
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non-food crops such as poplar trees and switchgrass. Currently, two energy crops are under developmentshort rotation 
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Ocean tidal / wave-actionWhere water in motion caused by ocean tides and shoreline wave action is used to 
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OETWGOffshore Electricity Transmission Working Group. 
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Off-peakPeriods of relatively low system demands. 
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OFGEMThe Office of Gas 
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Open circuit voltageThe voltage that an alternator or generator produces when it is NOT connected to anything 
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OutageTime during which service is unavailable from a generating unit, transmission line, or other facility. 
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Parabolic dishA high-temperature (above 180 degrees Fahrenheit) solar thermal concentrator, generally bowl- 
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Parabolic troughA high-temperature (above 180 degrees Fahrenheit) solar thermal concentrator with the capacity 
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Passive solarA system in which solar energy alone is used for the transfer of thermal energy. Pumps, blowers, or 
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PaybackThe length of time it takes for the savings received to cover the cost of implementing the technology. 
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PeakPeriods of relatively high system demands. 
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Peak demandMaximum power used in a given period of time. 
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