Frequently Asked Questions

Load Following

Planning by utilities to ensure that electric generators operate as scheduled, based upon load forecasts (also, operating a generator to balance short-term load fluctuations)

Obligation to Serve

Providing nondiscriminatory, reliable service to all customers as required by utility regulators

PTPs (Point-to-point financial transmission rights)

In the Midwest PTPs are defined as either obligations or options that are directional and entitle the owner of a PTP to be paid the difference in the congestion components of the locational prices between the specific point or points of receipt and the specified point or points of injection

Self-Generation

A generator that serves a specific retail customer, usually on the customer's premises; such a dedicated generator may be partially or fully owned by the customer

Unit Commitment

Determining the generators that must be operated to meet daily demand

Availability

The measure of time that a generating unit, transmission line or other facility is capable of providing service, whether the unit, line or facility is in service (expressed as a percent available for the time under consideration)

Captive Customer

A customer lacking realistic economic alternatives to buying power from its local utility, even if that customer has a legal right to purchase power from competitors

Curtailment

A reduction in scheduled capacity or energy delivery

Electrical Energy

The generation or use of electric power measured in kilowatt-hours, megawatt-hours or gigawatt-hours

Flowgate

A link in a transmission system