Markets

Renewable energy credit (REC)

A renewable energy credit, commonly called a REC,

Renewable portfolio standard (RPS)

A renewable portfolio standard, often called an RP

Replacement reserve

Replacement reserve comprises units that are avail

Reserve margin

The long-term balance of electric supply and deman

Residential customer class

Gas and electric utility rate structures and regul

Retail marketer

A retail marketer is a non-utility entity that sel

Risk management

Risk management refers to techniques used to contr

Service territory

A service territory defines the geographic area wh

Settlement (billing)

Settlement refers to the calculation, billing, and

Single buyer with competitive generation electric market model

Under the single-buyer electric market model, the

Southwest Power Pool (SPP)

SPP is a regional transmission organization (RTO)

Spark spread

The spark spread is a quantity that represents the

Speculation

Speculation is the act of taking on risk with the

Spinning reserve

Spinning reserves are units (or portions of units)

Spot market

In the energy business, a spot market is a commodi

Stranded costs

A stranded cost refers to the amount invested in a

Supply-side competition

Supply-side competition refers to competition betw

Tennessee Valley Authority (TVA)

TVA is owned by the United States government. TVA

Trading arrangements

Trading arrangements define how business transacti

Transmission company

Transmission companies, or transcos, are independe