Electricity

Single-phase service

Single-phase is a service configuration offered by

Small modular reactor (SMR)

New technologies in development promise much small

Smart grid

The term smart grid (also sometimes called the adv

Smart inverter

A smart inverter is an inverter that includes soph

Smart meter

A smart meter is an electronic device that records

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

State estimator

A state estimator is a software program that descr

Steam turbine

There are several fuel sources used to operate a s

Stranded costs

A stranded cost refers to the amount invested in a

Sub-meter

Sub-meters are meters installed behind a master me

Substation

A set of equipment on an electrical system that tr

Supply-side competition

Supply-side competition refers to competition betw

Surge impedance loading (SIL)

Surge impedance loading is a quantity used by syst

Switching

Switching is the process of rerouting the path tha

Switchyard

A switchyard is the set of facilities outside a po

Synchronization

In an AC electric power system, synchronization is