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Photovoltaic module, Photovoltaic solar panel, Power supply, Solar panel, Battery
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LOSSARY 50 Load: Electric power being consumed at any given moment.In an electrical circuit,any device or appliance that is using power.See PEAK LOAD. Load Profiles: The amount of energy used by a building or piece of equipment,viewed over time,i.e.an electric oven's loadprofile may show 1/2 kW hours use in the morning,with no use until early evening when it would peak at 1.5 kW hours and again drop down to 0. Load Resistance: The amount of resistance presented by an electric load to the flow of electrical current. Low Voltage Disconnect (LVD) :Low Voltage Load Disconnect Circuit which disconnects the load at a preset point. Maximum Power Point: Refers to the operating point on an I-V curve where the product of the current and voltage (power) ismaximized.Accordingly,the terms "maximum power current" and "maximum power voltage" are also encountered. Maximum Power Tracking: A mode of operation for a power conditioner,whereby it continuously controls the PV sourcevoltage in order to operate the PV source at (or very near) its maximum power point. Megawatt (MW): 1,000,000 Watts;1,000 kilowatts. Milliampere (mA): One thousandth of an ampere. mm: millimetres. mV: millivolts. Module: A number of solar cells connected together electrically and sealed inside a weatherproof package with a clear face.Sometimes called a "solar panel". MOV: Metal Oxide Varistor - transient/lightning protector. NEC: National Electrical Code,which contains safety guidelines for all types of electrical installations,including "SolarPhotovoltaic Systems" in Article 690. Nominal Operating Cell Temperature (NOCT): The equilibrium cell junction temperature corresponding to nominal moduleservice operating conditions in a reference environment of 80 MW/cm 2 irradiance,20°C ambient air temperature,1 m/s wind,1.5 AM and electrically open circuits. OHM: A measure of resistance to the flow of an electric current. Open Circuit Voltage (Voc): The voltage across a photovoltaic cell in sunlight when no current is flowing;the maximumpossible voltage. Panel (Flat Plate): A collection of modules fastened together,assembled and wired,intended to provide a field-installable unit. Panel Assembly: A collection of modules fastened together,assembled and wired,intended to provide a field-installable unit. Parallel Connection: A method of interconnecting two or more electricity- producing devices,or power-using devices,suchthat the voltage produced,or required,is not increased,but the current is additive.Opposite of series connection. Peak Load,Peak Demand: The maximum load,or usage,of electrical power occurring in a given period of time,typically a day. Peak Watt or Watt Peak (Wp): The amount of power a photovoltaic device will produce at solar noon on a clear day (insolationat 1000 Watts per square meter) when the cell is faced directly towards the sun. Photovoltaic: Pertaining to the direct conversion of light into electricity. Photovoltaic Array: An interconnected system of photovoltaic modules that functions as a single electricity-producing unit.Themodules are assembled as a discrete structure,with common support or mounting structure. KYOCERASolar Industrial Products Catalog • April 2006 |
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