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Electricity

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Electric market structure

An electric market structure describes the way that various market participants interact to produce and deliver electricity to the...

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Electric meter

Metering equipment is a critical component of all parts of the electric delivery system and serves a variety of functions. Most...

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Electric meter installation types

The meter installation type refers to how the meter is wired into the electric system and what other auxiliary equipment is necessary for...

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Electric meter operating technology types

There are three operating technologies used in electric meters. Historically, induction meters were the standard, but in recent years...

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Electric meter register types

A register is the device that records the units that are measured by the meter, and there are a number of different register types. The...

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Electric meter service types

Meters must be specifically designed for the type of power measured – either single-phase or three-phase. The difference between the two...

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Electric meter voltage types

One way to categorize electric meters is by the voltage they are required to meter. High-voltage systems require different meter set-ups...

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Electric reliability indices

Electric reliability indices measure the reliability of a given electric grid. They often are used by regulators to measure utility...

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Electric supply and demand

Because regulation has traditionally insulated customers from market pricing, electricity markets have not historically followed standard...

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Electric system operator

North America has five regional grids comprised of numerous interconnected transmission systems. These are the Eastern, Western, Texas,...

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Electric transmission lines

Transmission lines are the cables and supporting equipment that carry large amounts of power at high voltages from generating plants,...

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Electric transmission substation

Transmission substations are located where two transmission lines meet. They may tie together multiple lines owned by a single...

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Electric transmission system

Electric transmission is the movement of large amounts of electricity over long distances. The transmission system is the electrical...

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Electric units

Electricity is measured in two ways: using units of demand or capacity and using units of energy or usage. Units of demand/capacity...

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Electric vehicle (EV)

An EV is a vehicle that uses one or more electric or traction motors for propulsion. The electric motor may be powered by batteries, an...

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Electric wholesale services

Several types of electric services are bought and sold in wholesale markets. These services include: Forward capacity: A commitment to...

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Electrical power

Electrical power is the rate of work that can be accomplished by electricity. There are three types of electric power: Real power, which...

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Electrical service

Because most customers cannot accept power at distribution voltage, it is usually lowered to the desired service voltage by a service...

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Electricity

Electricity is simply the flow of electrons through a conductor. Electrons are the tiny negatively charged particles that are found in...

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Electricity losses

Losses of electricity through the delivery system are significant. The U.S. Energy Information Administration (EIA) estimates that losses...

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