Frequently Asked Questions

Schedule

An agreed-upon transaction size (measured in MW), start and end times, start and end ramp times and rates required for delivery and receipt of power and energy between contracting parties and the control areas involved in the transaction

Aggregator

An entity (for profit or non-profit) that assembles generators or customer loads to achieve economies of scale and diversity among the generators or loads being combined

Capacity

The rated, continuous load-carrying ability of generation, transmission or other electrical equipment (expressed in megawatts, megavolt-amperes or megavolt-amperes-reactive)

Cost of Service

Establishing the rates a utility charges its commercial, industrial and residential customers (customer classes) based on the reasonable and necessary costs of investment and servicing; in short, linking a utility's costs to its rate of return through regulation

Disturbance

Any unplanned event or outage that produces an abnormal system condition

FERC Order 888

The comprehensive rules enacted in 1996 that require open, nondiscriminatory access to transmission lines for wholesale electricity suppliers

Hub

A transmission network location where the price of electricity is used by traders as a reference price for spot transactions and for contracting

Load Center

An area (city, etc.) that uses large amounts of electricity (also called a load pocket)