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Useful power output per electrical power consumed
The efficiency of a system in electronics and electrical engineering is defined as useful power output divided by the total electrical power consumed (a
Electrical_efficiency
Ratio between the useful output and the input of a machine
more specific terms include Electrical efficiency, useful power output per electrical power consumed; Mechanical efficiency, where one form of mechanical
Energy_conversion_efficiency
Topics referred to by the same term
Energy efficiency may refer to: Energy efficiency (physics), the ratio between the useful output and input of an energy conversion process Electrical efficiency
Energy_efficiency
Degree to which a process minimizes waste of resources
Greek lowercase letter η (Eta): Electrical efficiency Energy conversion efficiency Mechanical efficiency Thermal efficiency, ratio of work done to thermal
Efficiency
Electricity-induced chemical reaction
hydrogen from fossil fuels (e.g. steam reforming). Maximizing the electrical efficiency and minimizing the material cost of electrolysis is a key research
Electrolysis_of_water
Applies an electric current to heat or cool materials
resistive heating, and shorter pillars, which will have a greater electrical efficiency but let more heat leak from the hot to cold side by thermal conduction
Thermoelectric_heat_pump
Energy consumption labelling scheme
gives an idea of the appliance's electrical consumption relative to what is available on the market Consumption, efficiency, capacity, etc.: this section
European_Union_energy_label
Performance measure of a device that uses thermal energy
gasoline automobile engine operates at around 25% efficiency, and a large coal-fuelled electrical generating plant peaks at about 46%. However, advances
Thermal_efficiency
Power supply with switching regulator
in the pass transistor. The switched-mode power supply's higher electrical efficiency is an important advantage. Switched-mode power supplies can also
Switched-mode_power_supply
Percentage of energy converted into electricity
power plant efficiency. The heat rate is the inverse of the efficiency: a lower heat rate is better. Heat Rate = Thermal Energy In Electrical Energy Out
Power_plant_efficiency
Ratio of the output to input power of a machine
advantage Thermal efficiency Electrical efficiency Internal combustion engine Electric motor Velocity ratio "Mechanical efficiency". Encyclopedia Britannica
Mechanical_efficiency
Technology for splitting water molecules
2021[update], the largest PEM electrolyzer is 20 MW. When determining the electrical efficiency of PEM electrolysis, the HHV can be used. This is because the catalyst
Proton exchange membrane electrolysis
Proton_exchange_membrane_electrolysis
Type of AC motor
motor provides an efficient means of converting AC energy to work (electrical efficiency above 95% is normal for larger sizes) and it can operate at leading
Synchronous_motor
Device that transmits and receives radio waves
relative to the decreased radiation resistance, entail a reduced electrical efficiency, which can be of great concern for a transmitting antenna, but bandwidth
Antenna_(radio)
higher efficiency electrically powered motors. This article looks at the development of the premium efficiency standard (IE3) and premium efficiency motors
Premium_efficiency
Electrolysis method
been made that there is a possibility it can result in a higher electrical efficiency in comparison to DC water electrolysis, but past research has shown
Pulse_electrolysis
25-500-kW internal combustion engine, typically Brayton cycle-type
thermal efficiency reaches 32.5% while the 360 kW (480 hp) non recuperated RGT3C is at 16.3%. Capstone Turbine claims a 33% LHV Electrical Efficiency for
Microturbine
Phenomena related to electric charge
other forms of energy with high efficiency. Electronics deals with electrical circuits that involve active electrical components such as vacuum tubes
Electricity
Constructed heat and power generation facility
conversion efficiency of 25% to 44% of the fuel's total heat of combustion). BHPPs using fuel cells may achieve an electrical efficiency of 55% to 60%
Block_heat_and_power_plant
Type of external power supply
Push for More Electrical Efficiency in PC's". New York Times. Retrieved 2011-06-03. Alter, Lloyd. "Google Pushes for PC Electrical Efficiency; Side Effect:
AC_adapter
Small-scale generation of heat and power
4% efficiency for electrical and 51% efficiency for waste heat recovery. Marathon Engine Systems, a Wisconsin company, produces a variable electrical and
Micro_combined_heat_and_power
Load measures the source's voltage without affecting it
power transfer theorem § Maximizing power transfer versus power efficiency, the efficiency η of delivering power to a purely restive load impedance of RL
Impedance_bridging
Longwave and mediumwave radio transmitter in England
The units use a form of pulse width modulation to give an overall electrical efficiency approaching 70%.[citation needed] There are also two guyed medium
Droitwich Transmitting Station
Droitwich_Transmitting_Station
Methods for higher energy efficiency
Efficient energy use, or energy efficiency, is the process of reducing the amount of energy required to provide products and services. There are many technologies
Efficient_energy_use
Lamp with integrated touch switch
and commercial models were available by 1955. However, due to low electrical efficiency and high price of the vacuum tube-based product, the concept was
Touch-sensitive_lamp
Subfields of building design and construction
engineers designing the electrical and plumbing systems for a building. A major concern for people designing HVAC systems is the efficiency, i.e., the consumption
Mechanical, electrical, and plumbing
Mechanical,_electrical,_and_plumbing
Ratio of energy extracted from sunlight in solar cells
Solar-cell efficiency is the portion of energy in sunlight that is converted into electricity by a solar cell. Efficiency, in combination with latitude
Solar-cell_efficiency
Measure of the opposition to current flow by an external electrical load
often used to evaluate the electrical efficiency of networks by breaking them up into multiple stages and evaluating the efficiency of the interaction between
Input_impedance
Machine that washes clothes
Centrifugation Laundry Clothes dryer Washer-dryer Detergent Drying cabinet Electrical efficiency Home appliance Ironing Laundry detergent Laundry symbol Laundry-folding
Washing_machine
Steerable propulsion pod under a watercraft
drilling rigs and drillships. Primary advantages are maneuverability, electrical efficiency, better use of ship space, and lower maintenance costs.[citation
Azimuth_thruster
Machine that converts electrical energy into mechanical energy
also dissipate heat. To calculate a motor's efficiency, the mechanical output power is divided by the electrical input power: η = P m P e {\displaystyle \eta
Electric_motor
Power-producing component of an electric machine
copper or aluminum. Copper armature wiring enhances electrical efficiencies due to its higher electrical conductivity. Aluminum armature wiring is lighter
Armature_(electrical)
Energy conversion in optics
In optics, wall-plug efficiency or radiant efficiency is the energy conversion efficiency with which the system converts electrical power into radiant flux
Wall-plug_efficiency
Devices generating electricity from radioisotope decay
ends to the cold ends. Metal thermocouples have low thermal-to-electrical efficiency. However, the carrier density and charge can be adjusted in semiconductor
Atomic_battery
Family of electrical connectors
for 380 V DC electric power distribution, as a way of improving electrical efficiency. DC power distribution has resulted in the need to standardize a
Anderson_Powerpole
Telecommunications performance metric
antenna which is actually delivered as an electrical signal. It is not to be confused with antenna efficiency, which applies to aperture antennas such
Radiation_efficiency
American inventor
extremely thin layer of gold. The resulting cells had a conversion electrical efficiency of about 1% owing to the properties of selenium given the material's
Charles_Fritts
Work done divided by heat provided
Engine efficiency of thermal engines is the relationship between the total energy contained in the fuel, and the amount of energy used to perform useful
Engine_efficiency
Form of thermal efficiency
otherwise be lost to heat during braking is recaptured as electrical power to improve fuel efficiency. The larger batteries in these vehicles power the car's
Fuel_efficiency
Type of continuous-flow turbine engine
have around 15% efficiencies without a recuperator, or 20 to 30% with one, and they can reach 85% combined thermal–electrical efficiency in cogeneration
Gas-turbine_engine
Coated wire for construction of coils
reduction of heat losses due to the electrical resistance of conductors. To improve the electrical energy efficiency of induction-type motors, load loss
Magnet_wire
Power station in Denmark
Avedøre unit 2 has an electrical efficiency of 49%, which makes it one of the world's most efficient. This record high efficiency is obtained when the
Avedøre_Power_Station
Device that converts the chemical energy from a fuel into electricity
8 MW systems that achieve 47% electrical efficiency and can utilize CHP technology to obtain higher overall efficiencies. One product, the DFC-ERG, is
Fuel_cell
Electronic hardware trend
Henry (March 29, 2010), "Implications of Historical Trends in the Electrical Efficiency of Computing", IEEE Annals of the History of Computing, 33 (3):
Koomey's_law
Cooling output divided by electricity input, as a standard for HVAC systems
10/h The energy efficiency ratio (EER) of a particular cooling device is the ratio of output cooling energy (in BTUs) to input electrical energy (in watt-hours)
Seasonal energy efficiency ratio
Seasonal_energy_efficiency_ratio
Rate at which electrical energy is transferred by an electric circuit
Electric power is the rate of transfer of electrical energy within a circuit. Its SI unit is the watt, the general unit of power, defined as one joule
Electric_power
Technology used in concentrated solar power stations
for the highest efficiency of any thermal conversion system in converting solar energy to electrical power (although the record efficiency of photovoltaic
Solar-powered_Stirling_engine
Economic theory
used then the overall efficiency can be significantly increased beyond electrical efficiency. For example, an overall efficiency of 86% can be reached
Methanol_economy
Industrial production of molecular hydrogen
current best processes for water electrolysis have an effective electrical efficiency of 70-80%, so that producing 1 kg of hydrogen (which has a specific
Hydrogen_production
Assembly of photovoltaic cells used to generate electricity
and module efficiency (%). Open-circuit voltage or VOC is the maximum voltage the module can produce when not connected to an electrical circuit or system
Solar_panel
Aluminium smelting process
within the cell is maintained via electrical resistance. Oxidation of the carbon anode increases the electrical efficiency at a cost of consuming the carbon
Hall–Héroult_process
UK-American engineer (1928–2019)
will dramatically improve energy economics by producing over 50% electrical efficiency." In 2010, the company changed its name and its focus, becoming
David_Gordon_Wilson
Type of electrodeless gas-discharge lamp
merit the National Electrical Manufacturers Association has defined to help address problems with lighting manufacturers' efficiency claims and is designed
Plasma_lamp
Type of furnace
the slag to foam, allowing greater thermal efficiency, and better arc stability and electrical efficiency. The slag blanket also covers the arcs, preventing
Electric_arc_furnace
Heat from a current in an electric conductor
the Joule–Lenz law, states that the power of heating generated by an electrical conductor equals the product of its resistance and the square of the current
Joule_heating
Thermodynamic process that uses energy sources to heat water
generator. Losses on the electrical grid (including line losses and voltage transformation losses) reduce electrical efficiency further. According to data
Water_heating
Worldwide consumption of electricity
During operation, some part of the energy is lost depending on the electrical efficiency. Electricity has been generated in power stations since 1882. The
Electric_energy_consumption
Engine in which fuel combusts with an oxidizer
General Electric 7HA and 9HA turbine combined cycle electrical plants are rated at over 61% efficiency. A gas turbine is a rotary machine somewhat similar
Internal_combustion_engine
Device put on or in the ears that plays sound
is a sound transducer design primarily intended to increase the electrical efficiency of the element by eliminating the stress on the diaphragm characteristic
Headphones
Early 2010s fusion energy effort
elements, simplified maintenance, and diode lasers with higher electrical efficiency. Two designs were considered, operated as either a pure fusion or
Laser_Inertial_Fusion_Energy
Device that converts heat flux into electrical energy
heat into additional electrical power and in automobiles as automotive thermoelectric generators (ATGs) to increase fuel efficiency. Radioisotope thermoelectric
Thermoelectric_generator
Electrothermal thruster in development
50 kW VX-50 showed the electrical efficiency to be 59% based on a 90% coupling efficiency and a 65% ion speed boosting efficiency.[failed verification]
Variable Specific Impulse Magnetoplasma Rocket
Variable_Specific_Impulse_Magnetoplasma_Rocket
Discarded electronic devices (E-Waste)
waste (E-Waste) describes discarded electrical or electronic devices. It is also commonly known as waste electrical and electronic equipment (WEEE) or
Electronic_waste
Device used to produce electricity from light
electrical conductance such as indium tin oxide, conducting polymers, or conducting nanowire networks are used for the purpose. Solar cell efficiency
Solar_cell
Austrian engine manufacturer
efficient gas engine available with an electrical efficiency of 48.7%, and a combined heat and power thermal efficiency of over 90%. The J920 uses Miller cycle
Jenbacher
Electric light bulb with a resistively heated wire filament
(luminous flux) to the electrical power consumed. Luminous efficacy is measured in lumens per watt (lm/W). The luminous efficiency of a source is defined
Incandescent_light_bulb
Electrical energy efficiency on United States farms covers the use of electricity on farms and the methods and incentives for improving the efficiency
Electrical energy efficiency on United States farms
Electrical_energy_efficiency_on_United_States_farms
Low resistance electrical conductor for high current transmission and distribution
material, such as plastic or (in older systems) electrical tape. The structural integrity and electrical efficiency of these interleaved busbars depend heavily
Bus_duct
Process in which electrical energy is converted to heat
strict. The efficiency of any system depends on the definition of the boundaries of the system. For an electrical energy customer the efficiency of electric
Electric_heating
Eurovent standards for air conditioner performance depending on time of year
States is the integrated energy efficiency ratio (IEER). Because ESEER is measured in units of watts for both electrical and cooling power, while the US
European seasonal energy efficiency ratio
European_seasonal_energy_efficiency_ratio
State of matter
overpotentials found in other electrolysers, thereby improving the electrical efficiency of the production of oxygen and hydrogen. Increased temperature
Supercritical_fluid
Type of radio antenna
of the antenna on the individual bands and reduce the antenna's electrical efficiency and subject the antenna to additional mechanical considerations
Yagi–Uda_antenna
Measure of energy loss in storage systems
Roundtrip efficiency is a key performance metric for an energy storage system (ESS) that characterizes the loss energy during a full cycle of charge and
Roundtrip_efficiency
Iron alloy optimized for magnetic properties
Electrical steel (E-steel, lamination steel, silicon electrical steel, silicon steel, relay steel, transformer steel) is speciality steel used in the
Electrical_steel
Chemical process
wavelengths, continued technological advances, have allowed for improved electrical efficiency of UV LEDs as well as significant increases in output. Benefiting
UV_curing
Amount of heat released by combustion of a quantity of substance
temperature Cost of electricity by source Electrical efficiency Energy content of fuel Energy conversion efficiency Energy density Energy value of coal Exothermic
Heat_of_combustion
History of semiconductor light source
bulbs, this is a huge increase in electrical efficiency (not realized in cold climates when making use of electrical heating other than by heat-pumps,
History_of_the_LED
Type of electrical conductor
Lighter than pure copper Greater electrical efficiency when sized per NEC 310.16 Higher strength than aluminium Electrical connections and terminations are
Copper-clad_aluminium_wire
Distance traveled by a vehicle compared to volume of fuel consumed
reduces efficiency. More modern systems use electrical fans to draw additional air through the radiator when extra cooling is required. Electrical systems
Fuel_economy_in_automobiles
Power supply with electrochemical cells
automobiles, this is somewhat offset by the higher efficiency of electric motors in converting electrical energy to mechanical work, compared to combustion
Electric_battery
Maximum theoretical efficiency of a solar cell
physics, the radiative efficiency limit (also known as the detailed balance limit, Shockley–Queisser limit, Shockley–Queisser efficiency limit or SQ limit)
Shockley–Queisser_limit
System that converts heat or thermal energy to mechanical work
engine is a system that transfers thermal energy to do mechanical or electrical work. While originally conceived in the context of mechanical energy,
Heat_engine
Theoretical gross margin of a gas-fired power plant
in MU/MWh pG as price of natural gas in MU/MWh or MU/Btu ηel as electrical efficiency resp. HR as heat rate in Btu/MWh While the above equations may be
Spark_spread
Consumption of energy by electrical devices while switched off or in standby mode
the need not to waste energy, more attention is being paid to the electrical efficiency of devices (fraction of power consumed that achieves functionality
Standby_power
Property of photosensitive devices
The quantum efficiency (QE) of a photodetector is a measure of its electrical response to light. Another name for it is incident photon to converted electron
Quantum_efficiency
Electrical transmission without physical connection
Efficiency: Optical to electrical conversion efficiency of photovoltaic cells is limited. However, power converters have demonstrated efficiencies up
Wireless_power_transfer
Facility generating electric power
generation of electric power. Power stations are generally connected to an electrical grid. Many power stations contain one or more generators, rotating machines
Power_station
with a load-following power generation design, and a thermal-to-electrical efficiency of more than 42%. The fuel is either U–Zr or U–Pu–Zr, and can keep
List of small modular reactor designs
List_of_small_modular_reactor_designs
Type of fuel cell
fuel cells operate between ambient temperature and 90 °C with an electrical efficiency higher than fuel cells with acidic electrolyte, such as proton-exchange
Alkaline_fuel_cell
and Henry Wong. 2011. Implications of Historical Trends in the Electrical Efficiency of Computing. IEEE Annals of the History of Computing. vol. 33,
Jonathan_Koomey
Magnetohydrodynamic converter that transforms thermal and kinetic energy into electricity
thermodynamic efficiency of any electrical generation method. MHD has been developed for use in combined cycle power plants to increase the efficiency of electric
Magnetohydrodynamic_generator
Simultaneous generation of electricity and useful heat
generator running at lower output temperature and higher efficiency. Typically for every unit of electrical power lost, then about 6 units of heat are made available
Cogeneration
Method to produce electricity from solar radiation
and module efficiency (%). Open-circuit voltage or VOC is the maximum voltage the module can produce when not connected to an electrical circuit or system
Photovoltaics
Interconnected network for delivering electricity to consumers
An electrical grid (or electricity network) is an interconnected network for electricity delivery from producers to consumers. Electrical grids consist
Electrical_grid
Technology of indoor and vehicular environmental comfort
filtration, and humidity control. HVAC design considerations include energy efficiency, indoor air quality, maintenance, and environmental impact, particularly
Heating, ventilation, and air conditioning
Heating,_ventilation,_and_air_conditioning
thermal and weighted electrical efficiency, where the weighting factor is the ratio of thermal to electrical reference efficiencies (γ = ηth, ref / ηel
Equivalence_number_method
Solar energy technology
overall efficiency and better utilization of the solar spectrum than conventional PV modules. Photovoltaic cells typically reach an electrical efficiency between
Photovoltaic thermal hybrid solar collector
Photovoltaic_thermal_hybrid_solar_collector
Discussing what form of transport is the most fuel efficient and economical
such energy is presented in liquid fuels, electrical energy or food energy. The inverse of the energy efficiency in transport is the energy consumption in
Energy efficiency in transport
Energy_efficiency_in_transport
Specialized construction professional
system controls to work together for maximum energy efficiency and building performance. Electrical contractors employ workers in many capacities, determined
Electrical_contractor
Heat produced as a byproduct of doing work
as oil refineries and steelmaking plants.[citation needed] The electrical efficiency of thermal power plants is defined as the ratio between the input
Waste_heat
ELECTRICAL EFFICIENCY
ELECTRICAL EFFICIENCY
Girl/Female
Tamil
Dakshhtha | தகà¯à®·à®¾à®¹à®¤à®¾
Efficiency, Care
Dakshhtha | தகà¯à®·à®¾à®¹à®¤à®¾
Girl/Female
Indian
Efficiency, Care
Female
English
English name derived from the vocabulary word, from Greek kyanos, CYAN means "dark blue" and "lapis lazuli." The color cyan is also sometimes called blue-green, electric blue, and turquoise.Â
Boy/Male
Arabic
Electric Light
ELECTRICAL EFFICIENCY
ELECTRICAL EFFICIENCY
Girl/Female
Gujarati, Hindu, Indian, Kannada, Marathi, Sindhi, Tamil, Telugu
Skill
Male
Romanian
Romanian form of Russian Vadim, probably WADIM means "knowing one."
Boy/Male
Tamil
Lord Krishna
Boy/Male
Australian, Christian, Jamaican
Precious Stone
Surname or Lastname
English (chiefly southwestern)
English (chiefly southwestern) : variant of Hale 1.
Boy/Male
Australian, Hindu, Indian
Handsome
Girl/Female
English American
Modern feminine of John and Jon.
Female
Norwegian
 Danish and Norwegian form of Latin Christina, KIRSTEN means "believer" or "follower of Christ." Compare with another form of Kirsten.
Boy/Male
Tamil
Music flow
Girl/Female
Indian, Sanskrit
Beneficent
ELECTRICAL EFFICIENCY
ELECTRICAL EFFICIENCY
ELECTRICAL EFFICIENCY
ELECTRICAL EFFICIENCY
ELECTRICAL EFFICIENCY
a.
Pertaining to the development of electricity, especially electrical currents, by power; producing electricity or electrical currents by mechanical power.
n.
The cushion of an electrical machine.
n.
A genus of South American fresh-water fishes, including the Gymnotus electricus, or electric eel. It has a greenish, eel-like body, and is possessed of electric power.
a.
Pertaining to electricity; consisting of, containing, derived from, or produced by, electricity; as, electric power or virtue; an electric jar; electric effects; an electric spark.
n.
The electric catfish.
n.
A genus of African siluroid fishes, including the electric catfishes. See Electric cat, under Electric.
n.
A supposed medium around various bodies; as, electrical atmosphere, a medium formerly supposed to surround electrical bodies.
v. i.
To become electric.
a.
Operating by induction; as, an inductive electrical machine.
n.
The art or process of making electrical measurements.
a.
Pertaining to, or characterized by, electricity by the action of magnets; as, magneto-electric induction.
n.
Any apparatus by which an electrical current is originated.
a.
Alt. of Elenctical
a.
Alt. of Electrical
a.
Electrifying; thrilling; magnetic.
a.
Acting by the operation of both light and electricity; -- said of apparatus for producing pictures by electric light.
a.
Capable of occasioning the phenomena of electricity; as, an electric or electrical machine or substance.
a.
Producing electro-motion; producing, or tending to produce, electricity or an electric current; causing electrical action or effects.
a.
Alt. of Magneto-electrical
a.
The state or quality of being electrical.