Glossary of Terms
Not familiar with a term? We've got you covered!
An acquired privilege or right, distinct from ownership of the soil, to use a specified area for certain specified uses.
- Economic Out
Contract provisions enabling a company to get out of gas purchase contracts based on economic changes that are detrimental to the company.
The Edison Electric Institute, a Washington, D.C.-based national trade organization of investor-owned electric companies that provides industry information and monitors regulatory changes and political developments.
Relating to heat, a percentage indicating the available Btu input to combustion equipment that is converted to useful purposes.
The Energy Information Administration, an agency of the U.S. Department of Energy that collects and analyzes statistical information. It provides a wealth of information at www.eia.doe.gov. It also gathers required information from industry participants.
- Electric System Losses
The total energy losses in an electric system between supply sources and delivery points. Loss occurs in transmission and distribution, primarily in the form of heat.
In a pipeline, the decomposition or destruction of the pipe wall by stray electrical currents. The chemical decomposition of a substance when electricity is passed through it in solution or in the molten state. When the process is applied to water or hydrogen, a potential energy source is formed.
- Electronic Gas Measurement (EGM)
“Real time” monitoring of natural gas quantities, and characteristics, as it passes through a specific location.
- Electronic Ignition
A spark ignition device designed to electrically initiate the combustion process.
- Eligibility Criteria
Standards that describe the customers who can participate in a utility’s DSM program.
- Embedded Costs
The cost of all the facilities in a natural gas supply system. Also called sunken costs, because the money cannot be recovered by abandoning the project.
- Emergency Rating
The rating, defined by the equipment owner, that specifies the level of electrical loading that a system, facility or element can support or withstand for a finite period. It assumes acceptable loss of equipment life or other physical or safety limitations for the equipment involved.
- Emergency Voltage Limits
The operating voltage range on interconnected systems that is acceptable for a limited time while system adjustments are being made following a facility outage or system disturbance.
- Enabling Agreement
The agreement that details the general terms and conditions for the purchase or sale of electricity, but that does not include the specific details or obligations of either the seller or the buyer.
- Energy Charge
- Energy Cost Adjustment (ECA)
The ECA is the mechanism used to reflect increases or decreases in the cost of energy (including fuel, transmission, and purchased power costs). This allows a utility to adjust rates when the cost of energy falls outside the predetermined energy rates. In Colorado, these costs are recovered exclusively through the ECA, and not through a combination of base rates and the ECA. This fee is approved by the Public Utilities Commission.