Energy terminology · MLC-0117

Energy terms: E (146)

E85 (Flex Fuel)High-level ethanol-gasoline blend containing 51 to 83 volume percent ethanol, depending on geography and...
E95A fuel containing a mixture of 95 percent ethanol and 5 percent gasoline
EAREstimated Additional Resources
Economy of scaleThe principle that larger production facilities have lower unit costs than smaller facilities.
Effective full-power daysThe number of effective full-power days produced by a unit is a measure of the unit's energy generation. It...
EIAThe Energy Information Administration. An independent agency within the U.S. Department of Energy that...
EISEnvironmental Impact Statement
Electric baseboardAn individual space heater with electric resistance coils mounted behind shallow panels along baseboards...
Electric currentThe flow of electric charge. The preferred unit of measure is the ampere.
Electric energyThe ability of an electric current to produce work, heat, light, or other forms of energy. It is measured in...
Electric expensesThe cost of labor, material, and expenses incurred in operating a facility's prime movers, generators...
Electric generatorA facility that produces only electricity, commonly expressed in kilowatthours (kWh) or megawatthours (MWh)...
Electric industry reregulationThe design and implementation of regulatory practices to be applied to the remaining traditional utilities...
Electric industry restructuringThe process of replacing a monopolistic system of electric utility suppliers with competing sellers, allowing...
Electric non-utilityAny entity that generates, transmits, or sells electricity, or sells or trades electricity services and...
Electric operating expensesSummation of electric operation-related expenses, such as operation expenses, maintenance expenses...
Electric plant acquisition adjustmentThe difference between (a) the cost to the respondent utility of an electric plant acquired as an operating...
Electric plant (physical)A facility containing prime movers, electric generators, and auxiliary equipment for converting mechanical...
Electric powerThe rate at which electric energy is transferred. Electric power is measured by capacity and is commonly...
Electric power gridA system of synchronized power providers and consumers connected by transmission and distribution lines and...
Electric power industryStationary and mobile generating units that are connected to the electric power grid and can generate...
Electric power plantA station containing prime movers, electric generators, and auxiliary equipment for converting mechanical...
Electric power sectorAn energy-consuming sector that consists of Electricity-only and Combined-heat-and-power (CHP) plants whose...
Electric power systemAn individual electric power entity--a company; an electric cooperative; a public electric supply corporation...
Electric pump for well waterThis pump forces the water from a well below ground level up into the water pipes that circulate through the...
Electric rateThe price set for a specified amount and type of electricity by class of service in an electric rate schedule...
Electric rate scheduleA statement of the electric rate and the terms and conditions governing its application, including attendant...
Electric system lossTotal energy loss from all causes for an electric utility.
Electric system reliabilityThe degree to which the performance of the elements of the electrical system results in power being delivered...
Electric utilityA corporation, person, agency, authority, or other legal entity or instrumentality aligned with distribution...
Electric utility divestitureThe separation of one electric utility function from others through the selling of the management and...
Electric utility generatorA generator that is owned by an electric utility, (see definition of electric utility) or a jointly owned...
Electric utility restructuringThe introduction of competition into at least the generation phase of electricity production, with a...
Electric utility sectorThe electric utility sector consists of privately and publicly owned establishments that generate, transmit...
Electric vehicleA general term for any on-road licensed vehicle that can plug into an electric power source and uses electric...
Electric zoneA portion of the grid controlled by the independent system operator.
Electrical system energy lossesThe amount of energy lost during generation, transmission, and distribution of electricity, including plant...
ElectricityA form of energy characterized by the presence and motion of elementary charged particles generated by...
Electricity brokerAn entity that arranges the sale and purchase of electric energy, the transmission of electricity, and/or...
Electricity congestionA condition that occurs when insufficient transmission capacity is available to implement all of the desired...
Electricity demandThe rate at which energy is delivered to loads and scheduling points by generation, transmission, and...
Electricity demand bidA bid into the power exchange indicating a quantity of energy or an ancillary service that an eligible...
Electricity generationThe process of producing electric energy or the amount of electric energy produced by transforming other...
Electricity paid by householdThe household paid the electric utility company directly for all household uses of electricity (such as water...
Electricity salesThe amount of kilowatthours sold in a given period of time; usually grouped by classes of service, such as...
Electricity sales to ultimate customersElectricity sales that are consumed by the customer and not available for resale. Includes electric sales to...
Electricity-only plantA plant designed to produce electricity only. See also Combined heat and power (CHP) plant.
Electrochemical processThe direct process end use in which electricity is used to cause a chemical transformation. Major uses of...
ElutionThe process of using a solvent (eluent) to remove select ions (e.g., uranium) from an adsorbent such as...
EmergencyThe failure of an electric power system to generate or deliver electric power as normally intended, resulting...
Emergency backup generationThe use of electric generators only during interruptions of normal power supply.
Emergency energyElectric energy provided for a limited duration, intended only for use during emergency conditions.
EmissionsAnthropogenic releases of gases to the atmosphere. In the context of global climate change, they consist of...
Emissions coefficientA unique value for scaling emissions to activity data in terms of a standard rate of emissions per unit of...
End userA firm or individual that purchases products for its own consumption and not for resale (i.e., an ultimate...
Ending stocksPrimary stocks of crude oil and petroleum products held in storage as of 12 midnight on the last day of the...
End-use energy consumptionEnd-use sector (residential, commercial, industrial, and transportation) consumption of primary energy plus...
End-use sectorsThe residential, commercial, industrial, and transportation sectors of the economy.
EnergyThe capacity for doing work as measured by the capability of doing work (potential energy) or the conversion...
Energy auditA program carried out by a utility company in which an auditor inspects a home and suggests ways energy can...
Energy broker systemIntroduced into Florida by the Public Service Commission, the energy broker system is a system for exchanging...
Energy chargeThat portion of the charge for electric service based upon the electric energy (kWh) consumed or billed.
Energy conservation featuresThis includes building shell conservation features, HVAC conservation features, lighting conservation...
Energy consumptionThe use of energy as a source of heat or power or as a raw material input to a manufacturing process.
Energy deliveriesEnergy generated by one electric utility system and delivered to another system through one or more...
Energy demandThe requirement for energy as an input to provide products and/or services.
Energy effectsThe changes in aggregate electricity use (measured in megawatthours) for consumers that participate in a...
Energy EfficiencyA ratio of service provided to energy input (e.g., lumens to watts in the case of light bulbs). Services...
Energy efficiency, ElectricityRefers to programs that are aimed at reducing the energy used by specific end-use devices and systems...
Energy efficient motorsAre also known as "high-efficiency motors" and "premium motors." They are virtually interchangeable with...
Energy exchangeAny transaction in which quantities of energy are received or given up in return for similar energy products...
Energy expendituresThe money directly spent by consumers to purchase energy. Expenditures equal the amount of energy used by the...
Energy informationIncludes (A) all information in whatever form on fuel reserves, extraction, and energy resources (including...
Energy Information AdministrationAn independent agency within the U.S. Department of Energy that develops surveys, collects energy data, and...
Energy IntensityA ratio of energy consumption to another metric, typically national gross domestic product in the case of a...
Energy intensity (Commercial Buildings Energy Consumption Survey)The ratio of consumption to floor space.
Energy lossDeleted because there is no need for a general term to encompass all forms of energy loss. Terms referring to...
Energy management and control systemAn energy conservation feature that uses mini/microcomputers, instrumentation, control equipment, and...
Energy management practicesInvolvement, as a part of the building's normal operations, in energy efficiency programs that are designed...
Energy Policy Act of 1992This legislation creates a new class of power generators, exempt wholesale generators, that are exempt from...
Energy receiptsEnergy brought into a site from another location.
Energy reservesEstimated quantities of energy sources that are demonstrated to exist with reasonable certainty on the basis...
Energy sale(s)The transfer of title to an energy commodity from a seller to a buyer for a price or the quantity transferred...
Energy savingsA reduction in the amount of electricity used by end users as a result of participation in energy efficiency...
Energy service providerAn energy entity that provides service to a retail or end-use customer.
Energy sourceAny substance or natural phenomenon that can be consumed or transformed to supply heat or power. Examples...
Energy supplierFuel companies supplying electricity, natural gas, fuel oil, kerosene, or LPG (liquefied petroleum gas) to...
Energy supplyEnergy made available for future disposition. Supply can be considered and measured from the point of view of...
Energy used in the homeFor electricity or natural gas, the quantity is the amount used by the household during the365- or 366-day...
Energy-consuming sectorsThe residential, commercial, industrial, transportation, and electric power sectors of the economy.
Energy-use sectorsA group of major energy-consuming components of U.S. society developed to measure and analyze energy use. The...
Energy-weighted industrial outputThe weighted sum of real output for all two-digit Standard Industrial Classification(SIC) manufacturing...
Engine sizeThe total volume within all cylinders of an engine when pistons are at their lowest positions. The engine is...
Enriched uraniumUranium in which the U-235 isotope concentration has been increased to greater than the 0.711 percent U-235...
Enrichment feed deliveriesUranium that is shipped under contract to a supplier of enrichment services for use in preparing enriched...
Enrichment tails assayA measure of the amount of fissile uranium (U-235) remaining in the waste stream from the uranium enrichment...
Environmental impact statementA report that documents the information required to evaluate the environmental impact of a project. It...
Environmental protection agency (EPA) certification filesComputer files produced by EPA for analysis purposes. For each vehicle make, model and year, the files...
Environmental restorationAlthough usually described as "cleanup," this function encompasses a wide range of activities, such as...
Environmental restrictionsIn reference to coal accessibility, land-use restrictions that constrain, postpone, or prohibit mining in...
EOREnhanced Oil Recovery
EPAEnvironmental Protection Agency
EPA certificationA permanent label on fireplace inserts and freestanding wood stoves manufactured after July1, 1988...
EPA composite MPGThe harmonic mean of the EPA city and highway MPG (miles per gallon), weighted under the assumption of 55...
EPACTEnergy Policy Act of 1992
Equilibrium cycleAn analytical term that refers to fuel cycles that occur after the initial one or two cycles of a reactor's...
Equity capitalThe sum of capital from retained earnings and the issuance of stock.
Equity crude oilThe proportion of production that a concession owner has the legal and contractual right to retain.
Equity (financial)Ownership of shareholders in a corporation represented by stock.
Equity in earnings of unconsolidated affiliatesA company's proportional share (based on ownership) of the net earnings or losses of an unconsolidated...
EstablishmentAn economic unit, generally, at a single physical location where business is conducted or where services or...
Estimated additional resourcesThe uranium in addition to reasonable assured resources (RAR) that is expected to occur, mostly on the basis...
Estimated Recoverable Reserves (coal)An estimate of coal reserves, based on a demonstrated reserve base, adjusted for assumed accessibility and...
ETBEethyl tertiary butyl ether
ETBE (ethyl tertiary butyl ether)(CH_3)_3COC_2H: An oxygenate blend stock formed by the catalytic etherification of isobutylene with ethanol.
Ethane (C_2H_6)A straight-chain saturated (paraffinic) hydrocarbon extracted predominantly from the natural gas stream...
Ethanol (C_2H_5OH)A clear, colorless, flammable alcohol. Ethanol is typically produced biologically from biomass feedstocks...
EtherA generic term applied to a group of organic chemical compounds composed of carbon, hydrogen, and oxygen...
Ethylene (C_2H_4)An olefinic hydrocarbon recovered from refinery or petrochemical processes, which is gaseous at standard...
Ethylene dichlorideA colorless, oily liquid used as a solvent and fumigant for organic synthesis, and for ore flotation.
EUEuropean Union
EurasiaThe physical land mass containing the continents of Europe and Asia. For Energy Information Administration...
Evacuated-tube collectorA collector in which solar thermal heat is captured by use of a collector fluid that flows through an...
Evaporation pondA containment pond (that preferably has an impermeable lining of clay or synthetic material such as hypalon)...
Evaporative cooler (swamp cooler)An air-cooling unit that turns air into moist, cool air by saturating the air with water vapor. It does not...
EWGExempt Wholesale Generator
Excess statutory depletionThe excess of estimated statutory depletion allowable as an income tax deduction over the amount of cost...
Exchange agreementA contractual agreement in which quantities of crude oil, petroleum products, natural gas, or electricity are...
Exchange, electricityA type of energy exchange in which one electric utility agrees to supply electricity to another. Electricity...
Exchange, natural gasA type of energy exchange in which one company agrees to deliver gas, either directly or through...
Exchange, petroleumA type of energy exchange in which quantities of crude oil or any petroleum product(s) are received or given...
Exchange, powerDelete in favor of the already-defined term exchange energy, which should be renamed exchange electricity or...
Exempt wholesale generatorWholesale generators created under the 1992 Energy Policy Act that are exempt from certain financial and...
Exhaust fanSmall fans located in the wall or ceiling that exhaust air, odors, and moisture from the bathroom, kitchen...
ExpenditureThe incurrence of a liability to obtain an asset or service.
Expenditures per million BtuThe aggregate ratio of a group of buildings' total expenditures for a given fuel to the total consumption of...
Expenditures per square footThe aggregate ration of a group of buildings' total expenditures for a given fuel to the total floor space in...
Exploration drillingDrilling done in search of new mineral deposits, on extensions of known ore deposits, or at the location of a...
Exploratory wellA hole drilled a) to find and produce oil or gas in an area previously considered unproductive area; b) to...
ExportsShipments of goods from within the 50 States and the District of Columbia to U.S. possessions and territories...
ExtensionsAny new reserves credited to a previously producing reservoir because of enlargement of its proved area. This...
Extensions, discoveries, and other additionsAdditions to an enterprise's proved reserves that result from(1) extension of the proved acreage of...
ExternalitiesBenefits or costs, generated as a byproduct of an economic activity, that do not accrue to the parties...
Extraction lossThe extraction of gas plant liquids constituents such as ethane, propane, normal butane, isobutane, and...
Extractive industriesIndustries involved in the activities of (1) prospecting and exploring for wasting (non-regenerative) natural...
Extraordinary income deductions (electric utility)Those items related to transactions of a nonrecurring nature that are not typical or customary business...

146 of 2,515 terms in Energy terminology (MLC-0117). Request the full dataset.