U.S. Department of Energy - Energy Efficiency and Renewable
Energy Energy Intensity Indicators: Terminology and Definitions
The Energy Intensity Indicators Web site uses the following
terms with their associated definitions. - Primary Energy -
Primary energy consumption is the amount of fossil and renewable
fuels directly consumed by either one of the four major end-use
sectors or by the electric power sector. The total primary
energy across these five sectors is consistent with total energy
use in the economy as shown in Table 2.1a of the Energy
Information Administration's (EIA's) Annual Energy Review (AER)
(see the EIA Annual Energy Review). - Delivered Energy - (see
Highlights - Delivered Energy) The amount of energy consumed at
the point of sale (e.g., that enters the home, building, or
establishment) without adjustment for energy loss in the
generation, transmission, and distribution of energy. This is
primary energy for the four end-use sectors plus electricity
sales. Delivered energy is, sometimes ref