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  2. Mathematics of three-phase electric power - Wikipedia

    en.wikipedia.org/wiki/Mathematics_of_three-phase...

    A delta system arrangement provides only one voltage, but it has a greater redundancy as it may continue to operate normally with one of the three supply windings offline, albeit at 57.7% of total capacity. [1] Harmonic current in the neutral may become very large if nonlinear loads are connected.

  3. Electricity meter - Wikipedia

    en.wikipedia.org/wiki/Electricity_meter

    North American domestic analog (Ferraris disk) electricity meter. Electricity meter with transparent plastic case (Israel) An electricity meter, electric meter, electrical meter, energy meter, or kilowatt-hour meter is a device that measures the amount of electric energy consumed by a residence, a business, or an electrically powered device over a time interval.

  4. Electricity billing in the UK - Wikipedia

    en.wikipedia.org/wiki/Electricity_billing_in_the_UK

    MSP kWh is the amount of electricity consumed at the 'meter supply point', which is the customer's meter. GSP kWh is obtained by multiplying the MSP kWh by the Line Loss Factor (LLF, a figure > 1) to include the amount of electricity lost when it is conducted through the distribution network, from the 'grid supply point' to the customer's meter.

  5. Per-unit system - Wikipedia

    en.wikipedia.org/wiki/Per-unit_system

    In the power systems analysis field of electrical engineering, a per-unit system is the expression of system quantities as fractions of a defined base unit quantity. . Calculations are simplified because quantities expressed as per-unit do not change when they are referred from one side of a transformer to t

  6. Power-voltage curve - Wikipedia

    en.wikipedia.org/wiki/Power-voltage_curve

    Power-voltage curve (also P-V curve) describes the relationship between the active power delivered to the electrical load and the voltage at the load terminals in an electric power system under a constant power factor. [1] When plotted with power as a horizontal axis, the curve resembles a human nose, thus it is sometimes called a nose curve. [2]

  7. Net metering - Wikipedia

    en.wikipedia.org/wiki/Net_metering

    Net metering (or net energy metering, NEM) is an electricity billing mechanism that allows consumers who generate some or all of their own electricity to use that electricity anytime, instead of when it is generated.

  8. Inflation: Why your electricity costs keep going up - AOL

    www.aol.com/finance/inflation-why-electricity...

    The latest inflation reading showed the electricity index rose 3.8% over the past twelve months while other components within the energy index fell. That's largely because infrastructure costs ...

  9. Power-flow study - Wikipedia

    en.wikipedia.org/wiki/Power-flow_study

    In power engineering, the power-flow study, or load-flow study, is a numerical analysis of the flow of electric power in an interconnected system. A power-flow study usually uses simplified notations such as a one-line diagram and per-unit system, and focuses on various aspects of AC power parameters, such as Voltage, voltage angles, real power and reactive power.