Energy terminology · MLC-0117

Energy terms: W (69)

• WACOGWeighted Average Cost of Gas
• WaferA thin sheet of semiconductor (photovoltaic material) made by cutting it from a single crystal or ingot.
• Walk-in refrigeration unitsRefrigeration/freezer units within a building that are large enough to walk into. They may be portable or...
• Wall insulationInsulating materials within or on the walls between heated areas of the building and unheated areas or the...
• Warranty contractsGas purchase agreements for the sale of natural gas by a producer to a pipeline company wherein the producer...
• Waste coalUsable material that is a byproduct of previous coal processing operations. Waste coal is usually composed of...
• Waste energyMunicipal solid waste, landfill gas, methane, digester gas, liquid acetonitrile waste, tall oil, waste...
• Waste heat boilerA boiler that receives all or a substantial portion of its energy input from the combustible exhaust gases...
• Waste heat recoveryAny conservation system whereby some space heating or water heating is done by actively capturing byproduct...
• Waste materialsOtherwise discarded combustible materials that, when burned, produce energy for such purposes as space...
• Waste oils and tarPetroleum-based materials that are worthless for any purpose other than fuel use.
• Wastewater, domestic and commercialWastewater (sewage) produced by domestic and commercial establishments.
• Wastewater, industrialWastewater produced by industrial processes.
• Water bed heaterAn appliance that uses an electric resistance coil to maintain the temperature of the water in a water bed at...
• Water conditionsThe status of the water supply and associated water in pondage and reservoirs at hydroelectric plants.
• Water heated in furnaceSome furnaces provide hot water as well as heat the home. The water is heated by a coil that is part of the...
• Water heaterAn automatically controlled, thermally insulated vessel designed for heating water and storing heated water...
• Water heating DSM programsThese are demand-side management (DSM) programs designed to promote increased efficiency in water heating...
• Water heating equipmentAutomatically controlled, thermal insulated equipment designed for heating and storing heated water at...
• Water pollution abatement equipmentEquipment used to reduce or eliminate water borne pollutants, including chlorine, phosphates, acids, bases...
• Water pumpingPhotovoltaic modules/cells used for pumping water for agricultural, land reclamation, commercial, and other...
• Water reservoirA large inland body of water collected and stored above ground in a natural or artificial formation.
• Water saturationThe fraction of water in a given pore space expressed in volume per volume or as a percentage of the pore...
• Water source heat pumpA type of (geothermal) heat pump that uses well (ground) or surface water as a heat source. Water has a more...
• Water turbineA turbine that uses water pressure to rotate its blades; the primary types are the Pelton wheel, for high...
• Water vaporWater in a vaporous form, especially when below boiling temperature and diffused (e.g., in the atmosphere).
• Water wellA well drilled to (1) obtain a water supply to support drilling or plant operations, or (2) obtain a water...
• Water wheelA wheel that is designed to use the weight and/or force of moving water to turn it, primarily to operate...
• WaterwayA river, channel, canal, or other navigable body of water used for travel or transport.
• Watt (W)The unit of electrical power equal to one ampere under a pressure of one volt. A Watt is equal to 1/746 horse...
• Watthour (Wh)The electrical energy unit of measure equal to one watt of power supplied to, or taken from, an electric...
• WattmeterA device for measuring power consumption.
• WaxA solid or semi-solid material consisting of a mixture of hydrocarbons obtained or derived from petroleum...
• Weather stripping or caulkingAny of several kinds of crack-filling material around any windows or doors to the outside used to reduce the...
• WeirA dam in a waterway over which water flows and that serves to raise the water level or to direct or regulate...
• WellA hole drilled in the earth for the purpose of:
• Well water for coolingA means of cooling that uses water from a well drilled specifically for that purpose. The subterranean...
• WellheadThe point at which the crude (and/or natural gas) exits the ground. Following historical precedent, the...
• Wellhead priceThe value at the mouth of the well. In general, the wellhead price is considered to be the sales price...
• West Texas Intermediate (WTI - Cushing)A crude stream produced in Texas and southern Oklahoma which serves as a reference or "marker" for pricing a...
• Wet bottom boilerSlag tanks are installed usually at the furnace throat to contain and remove molten ash.
• Wet natural gasA mixture of hydrocarbon compounds and small quantities of various non hydrocarbons existing in the gaseous...
• Wheeling chargeAn amount charged by one electrical system to transmit the energy of, and for, another system or systems.
• Wheeling serviceThe movement of electricity from one system to another over transmission facilities of interconnecting...
• White greaseThe fat produced during the rendering process, mostly from pork, that is collected and processed to produce...
• White spiritA highly refined distillate with a boiling point range of about 150 degrees to 200 degrees Centigrade. It is...
• Whole-house cooling fanA mechanical/electrical device used to pull air out of an interior space; usually located in the highest...
• Wholesale competitionA system whereby a distributor of power would have the option to buy its power from a variety of power...
• Wholesale electric power marketThe purchase and sale of electricity from generators to resellers (retailers), along with the ancillary...
• Wholesale power marketThe purchase and sale of electricity from generators to resellers (who sell to retail customers), along with...
• Wholesale priceThe rack sales price charged for No. 2 heating oil; that is, the price charged customers who purchase No. 2...
• Wholesale salesEnergy supplied to other electric utilities, cooperatives, municipals, and Federal and state electric...
• Wholesale transmission servicesThe transmission of electric energy sold, or to be sold, in the wholesale electric power market.
• Wholesale wheelingAn arrangement in which electricity is transmitted from a generator to a utility through the transmission...
• WiWithheld to avoid disclosure of individual company data.
• Wind energyKinetic energy present in wind motion that can be converted to mechanical energy for driving pumps, mills...
• Wind energy conversion system (WECS) or deviceAn apparatus for converting the energy available in the wind to mechanical energy that can be used to power...
• Wind power plantA group of wind turbines interconnected to a common utility system through a system of transformers...
• Wind turbineWind energy conversion device that produces electricity; typically three blades rotating about a horizontal...
• Wires chargeA broad term referring to fees levied on power suppliers or their customers for the use of the transmission...
• Wood and wood-derived fuelsWood and products derived from wood that are used as a fuel, including round wood (cord wood), limb wood...
• Wood conversion to BtuConverting cords of wood into a Btu equivalent is an imprecise procedure. The number of cords each household...
• Wood energyWood and wood products used as fuel, including round wood (cord wood), limb wood, wood chips, bark, saw dust...
• Wood pelletsSaw dust compressed into uniform diameter pellets to be burned in a heating stove.
• Working gasThe quantity of natural gas in the reservoir that is in addition to the cushion or base gas. It may or may...
• Working gas capacityThe amount of total natural gas storage capacity that can used to store natural gas available for withdrawal.
• Working interestAn interest in a mineral property that entitles the owner of that interest to all of share of the mineral...
• Working storage capacityThe difference in volume between the maximum safe fill capacity and the quantity below which pump suction is...
• WTIWest Texas Intermediate

69 of 2,500 terms in Energy terminology (MLC-0117). Request the full dataset.