Glossary of Terms
Not familiar with a term? We've got you covered!
- Imbalance (gas)
When a party receives or delivers a quantity of natural gas, then delivers or redelivers a larger or smaller quantity of natural gas to another party.
In DSM, a cash or non-cash award that is offered to encourage participation in a utility-sponsored DSM program.
- Incentive Program
A DSM program in which an incentive is offered to encourage participation and adoption of the recommended measure.
- Incremental Cost
The additional costs incurred from the production or delivery of an additional number of units of gas, usually the minimum capacity or production that can be added. The additional cost divided by the additional capacity or output is defined as the incremental cost. Also, in DSM, the difference in costs between an efficient technology or measure and the alternative standard technology.
- Independent Power Marketer
A company, other than a utility, that sells wholesale electricity.
A general term for a measure; also applied to the mechanism, composed of gears, dials, and dial face, that indicates the quantity of gas passing through a meter.
A heater in which combustion products do not come in contact with the material to be heated; heating of the material is accomplished by radiation or conduction from the heated surfaced. Compare DIRECT-FIRED.
- Initial Delivery
The first gas to flow under an agreement at a new facility or for a new contract.
- Instantaneous Demand
The rate of energy used right now.
- Integrated Resource Planning
A utility planning method whereby alternative resource mixes, including demand-side and supply-side options, are evaluated in order to determine which resource plan minimizes the overall cost of service, subject to reliability and various other constraints.
- Intermediate Load
The range between baseload and peak load.
- Interstate Natural Gas Association of America (INGAA)
Trade group representing the interstate pipelines.