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What does EF stand for?

EF stands for Energy Factor

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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We have 36 other meanings of EF in our Acronym Attic

Samples in periodicals archive:

Features of the Navien NPE Series tankless water heater include: * 2" PVC Venting up to 60' or a System 636 (ULCS636) option for Canada * 1/2" Gas lines up to 24' * ComfortFlow and Intelligent Preheating technology * Buffer tank included * Recirculation pump included * Field convertibility from natural gas to liquid propane gas * Cascading capable * Dual stainless steel heat exchangers * Ultra condensing efficiency ** Industry leading energy factor of.
These inputs could be used to calculate an "in service energy factor (EF)" (dividing thermal energy output by electrical energy input); note that this is a site (not source) measurement.
The engines' highly intelligent design, Business Week-Europe reports, could achieve an energy factor of 94 percent--contrasted to 30 percent to 40 percent energy efficiency of a nuclear power plant, or 40 percent to 60 percent in modern gas-fired plants.