Browse terms related to these fuel groups:alternative fuels|coal|electricity|natural gas|nuclear|petroleum|renewable
Primary coal: All coal milled and, when necessary, washed and sorted.
Primary energy: Energy in the form that it is first accounted for in a statistical energy balance, before any transformation to secondary or tertiary forms of energy. For example, coal can be converted to synthetic gas, which can be converted to electricity; in this example, coal is primary energy, synthetic gas is secondary energy, and electricity is tertiary energy. See Primary energy production and Primary energy consumption.
Primary energy consumption: Primary energy consumption: Consumption of primary energy. The U.S. Energy Information Administration includes the following in U.S. primary energy consumption:
Primary energy consumption also includes all non-combustion uses of fossil fuels. Energy sources produced from other energy sources—for example, coal coke from coal—are included in primary energy consumption only if their energy content has not already been included as part of the original energy source. As a result, U.S. primary energy consumption does include net imports of coal coke, but it does not include the coal coke produced from domestic coal.
Note: In some EIA publications, conventional hydroelectricity net generation, geothermal electricity net generation, solar thermal and photovoltaic electricity net generation (both utility-scale and small-scale), and wind electricity net generation are converted to Btu using the average annual heat rate of fossil-fueled plants, under definitions used prior to September 2023.
Primary energy consumption expenditures: Expenditures for energy consumed in each of the four major end-use sectors, excluding energy in the form of electricity, plus expenditures by the electric utilities sector for energy used to generate electricity. There are no fuel-associated expenditures for associated expenditures for hydroelectric power, geothermal energy, photovoltaic and solar energy, or wind energy. Also excluded are the quantifiable consumption expenditures that are an integral part of process fuel consumption.
Primary energy production: Production of primary energy. The U.S. Energy Information Administration includes the following in U.S. primary energy production:
Note: In some EIA publications, conventional hydroelectricity net generation, geothermal electricity net generation, solar thermal and photovoltaic electricity net generation (both utility-scale and small-scale), and wind electricity net generation are converted to Btu using the average annual heat rate of fossil-fueled plants, under definitions used prior to September 2023.
Primary fuels: Fuels that can be used continuously. They can sustain the boiler sufficiently for the production of electricity.
Primary metropolitan statistical area (PMSA): A component area of a Consolidated metropolitan statistical area consisting of a large urbanized county or cluster of counties (cities and towns in New England) that demonstrate strong internal economic and social links in addition to close ties with the central core of the larger area. To qualify, an area must meet specified statistical criteria that demonstrate these links and have the support of local opinion.
Primary recovery: The crude oil or natural gas recovered by any method that may be employed to produce them where the fluid enters the well bore by the action of natural reservoir pressure(energy or gravity).
Primary transportation: Conveyance of large shipments of petroleum raw materials and refined products usually by pipeline, barge, or ocean-going vessel. All crude oil transportation is primary, including the small amounts moved by truck. All refined product transportation by pipeline, barge, or ocean-going vessel is primary transportation.