Directory of Energy Topics Covered at WikiPedia

Focusing on "Energy", in this case as an electrical, chemical or motive power, with emphasis on clean, renewable sources.

Energy Modalities

Modes of energy generation or energy conservation covered at Wikipedia. Listed alphabetically.

Bus running on soybean biodiesel.

• Alcohol fuel
• Batteries
• Banki turbine - hydro power, like overshot
• Bioalcohol
• Biodiesel
• Biodiesel production
• Biodigester
• Biofuel
• Biomass
• Cold fusion
• Combustion
• Compound turbine - two axle, steam
• Deep lake water cooling
• External combustion engine

Spoked flywheel

• Flywheels
• Fossil fuel
• Fuel - A substance used as a source of energy, usually by the heat produced in combustion.
• Fuel cell
• Fuel efficiency
• Fusion power
• Gas turbine
• Geothermal exchange heat pump
• Geothermal heating
• Geothermal power
• Green building

ITER Fusion

• Heliostat - device that tracks the movement of the sun
• Hot-Dry-Rock - method to produce geothermal power in places where there is little underground water
• Hydrocarbon
• Hydroelectricity
• Hydrogen economy
• Liquid fuel
• Methanol economy
• Nuclear fusion
• Oxidation
• Permanent magnet motor
• Photovoltaics
• Pneumatics - compressed air
• Propellant
• Savonious wind turbine - wind

Minato Wheel by Eric Krieg

• Solar box cooker
• Solar cell
• Solar chimney
• Solar panel
• Solar power
• Solar thermal energy
• Solar Tower - large version of the solar chimney concept
• Solar Tower Buronga
• Solid fuel
• Straight vegetable oil (SVO)
• Steam turbine
• Stirling engine
• Sustainable design
• Tesla turbine
• Tidal power
• Transmutation
• Turgo turbine impulse water turbine designed for medium head applications

• Vacuum energy
• Wave power
• Water turbine
• Wind energy
• Wind farm
• Wind turbine
• Wood gas
• Zero-point energy

Bus running on soybean biodiesel. ... Bus running on soybean biodiesel. ... Binomial name Glycine max Soybeans (US) or soya beans (UK) (Glycine max) are a high-protein legume (Family Fabaceae) grown as food for both humans and livestock. ... The use of alcohol as a fuel for internal combustion engines, either alone or in combination with other fuels, has been given much attention mostly because of its possible environmental and long-term economical advantages over fossil fuels. ... Four double-A batteries In science and technology, a battery is a device that stores energy and makes it available in an electrical form. ... Banki turbine. ... This article is about bioalcohol in general. ... Bus running on soybean biodiesel. ... Biodiesel production is the process of making biodiesel, an liquid fuel source largely compatible with petroleum based diesel fuel. ... A biodigester is a machine used for the production of biogas, a mixture of gases created by methanogenic bacteria digesting organic matter in an anaerobic condition. ... Biofuel is any fuel that derives from biomass - recently living organisms or their metabolic byproducts, such as manure from cows. ... Biomass is organic non- fossil material, collectively. ... Charles Bennett examines three cold fusion test cells at the Oak Ridge National Laboratory, USA Cold fusion is technically the name for any nuclear fusion reaction that may occur well below the temperature required for thermonuclear reactions (millions of degrees Celsius). ... Combustion or burning is an exothermic reaction between a substance (the fuel) and a gas (the oxidizer) to release heat. ... A compound turbine is a turbine in which there are two casings, a high-pressure casing and a low-pressure casing, operating in concert to extract work from a single source of steam. ... Deep lake water cooling is the use of cold water piped from a lake bottom and used for cooling. ... An external combustion engine is an engine which burns its fuel to heat a separate working fluid which then in turn performs work. ... Fossil fuels are hydrocarbon-containing natural resources such as coal, petroleum and natural gas. ... For information on the band, see Fuel (band). ... A fuel cell is an electrochemical device similar to a battery, but differing from the latter in that it is designed for continuous replenishment of the reactants consumed; i. ... Fuel efficiency, sometimes also referred to as fuel economy and commonly gas mileage in the United States, is a numeric measure often used to describe the amount of fuel consumed with regard to the distance travelled in a transportation vehicle, such as an automobile. ... The sun is a natural fusion reactor Fusion power is the extraction of energy in some useful form, generally expected to be electricity, from a nuclear fusion reaction. ... The worlds first commercial, oil-free gas turbine is manufactured by Capstone. ... A geothermal exchange heat pump is a heat pump that uses the Earth as either a heat source or a heatsink depending on the mode of operation: heating or cooling. ... Geothermal heating is a method of heating and cooling a building. ... Geothermal power is electricity generated by utilizing naturally occurring geological heat sources. ... Green building is the practice of: increasing the efficiency with which buildings and their sites use and harvest energy, water, and materials, and reducing building impacts on human health and the environment, through better siting, design, construction, operation, maintenance, and removal — the complete building life cycle. ... A Heliostat is a device that tracks the movement of the sun. ... In chemistry, a hydrocarbon is a cleaning solution consisting only of carbon (C) and hydrogen (H). ... Hydroelectric dam diagram The waters of Llyn Stwlan, the upper reservoir of the Ffestiniog Pumped-Storage Scheme in north Wales, can just be glimpsed on the right. ... A hydrogen economy is a hypothetical future economy in which the primary form of stored energy for mobile applications and load balancing is hydrogen. ... Liquid fuels are those combustible or energy-generating molecules which can be harnessed to create mechanical energy, which in turn usually produces kinetic energy, and which also must take the shape of their container. ... In physics, nuclear fusion (a thermonuclear reaction) is a process in which two nuclei join, forming a larger nucleus and releasing energy. ... The most fundamental reactions in chemistry are the redox processes. ... A solar cell, a form of photovoltaic cell, is a device that uses the photoelectric effect to generate electricity from light, thus generating solar power (energy). ... Pneumatics, from the Greek πνευματικός (pneumatikos, coming from the wind) is the use of pressurized air in science and technology. ... A propellant is a material that is used to move an object by applying a motive force. ... A solar box cooker is an insulated transparent-topped box with a reflective lid. ... A solar cell, or photovoltaic cell, is a semiconductor device consisting of a large-area p-n junction diode, which, in the presence of sunlight is capable of generating usable electrical energy. ... A solar chimney is an apparatus for harnessing solar energy by convection of heated air. ... Solar Panel made by BP Solar The solar panels (photovoltaic arrays) on this small yacht at sea can charge the 12 V batteries at up to 9 Amps in full, direct sunlight. ... Solar power describes a number of methods of harnessing energy from the light of the sun. ... The major applications of solar thermal energy at present are heating swimming pools, heating water for domestic use, and space heating of buildings. ... A solar tower is a structure used to support equipment for studying the sun. ... Solid fuel is a term given to various types of solid material that provide energy. ... Straight Vegetable Oil (SVO) is a fuel for diesel engines that can be either pure new vegetable oil or WVO (cleaned waste vegetable oil). ... A steam turbine extracts the energy of dry pressurized superheated steam as mechanical movement. ... The Stirling engine is a type of hot air engine, invented in 1816 by the Rev. ... Sustainable design is the art of producing objects using only renewable resources, and which themselves, in operation, deplete only renewable resources. ... The Tesla turbine is a bladeless turbine design patented by Nikola Tesla in 1913. ... Tidal power is a means of electricity generation achieved by capturing the energy contained in moving water mass due to tides. ... see also transmutation of species Transmutation is the conversion of one object into another. ... Turgo turbine and generator The Turgo turbine is an impulse water turbine designed for medium head applications. ... This is a file from the Wikimedia Commons, a repository of free content hosted by the Wikimedia Foundation. ... Vacuum energy is the energy that exists in an empty piece of space. ... Tidal power is a means of electricity generation achieved by capturing the energy contained in moving water mass due to tides. ... A Francis turbine and generator cut-away view A water turbine is a rotary engine that takes energy from moving water. ... Categories: Stub ... A wind farm is a collection of wind turbines all in the same location. ... A tall tower holds a wind turbine aloft where winds are consistently stronger. ... Wood gas, also known as producer gas or syngas, is the product of thermal gasification of biomass or other carbon containing materials such as coal in a gasifier. ... In a quantum mechanical system such as the particle in a box or the quantum harmonic oscillator, the lowest possible energy is called the zero-point energy. ...

Energy Infrastructure

See especially Category:Electric_power and Category:Fuels for a large number of conventional energy related topics.

• Energy storage
• Electricity generation
• Electricity retailing
• Microwave power transmission
• Power plant
• Power supply

Energy storage is the storing of some form of energy that can be drawn upon at a later time to perform some useful operation. ... Itaipu Dam is a hydroelectric generating station Electricity generation is the first process in the delivery of electricity to consumers. ... Electricity retailing is the final process in the delivery of electricity from generation to the consumer. ... Microwave power transmission (MPT) is the practice of using microwaves to transmit power through outer space or the atmosphere without the need for wires. ... A power station (also power plant) is a facility for the generation of electric power. ... A power supply unit (sometimes abbreviated power supply or PSU) is a device that supplies electrical power to a device or group of devices. ...

Energy Applications

• Distributed generation
• Electric vehicle
• Hybrid vehicle
• Hydrogen car

Distributed generation is a new trend in electric power generation. ... An electric vehicle is a vehicle that is propelled by electric motors. ... A hybrid car or hybrid electric vehicle is a vehicle which relies not only on batteries but also on an internal combustion engine which drives a generator to provide the electricity and may also drive the wheels directly. ... A hydrogen car is an automobile which uses hydrogen (usually obtained from decomposition of methane, and sometimes from water using electrolysis) as its primary source of power for locomotion. ...

General Energy Topics

• Energy
• Green electricity
• Orders of magnitude (energy) - list describes various energy levels between 10⁻³¹ joules and 10⁷⁰ joules

Energy is a fundamental quantity that every physical system possesses; it allows us to predict how much work the system could be made to do, or how much heat it can exchange. ... Green energy is a term used by some environmentalists to describe what they deem to be environmentally friendly sources of power. ... To help compare different orders of magnitude, the following list describes various energy levels between 10−31 joules and 1070 joules. ... The joule (symbol J, also called newton metre, or coulomb volt) is the SI unit of energy and work. ...

Energy Inventors

Nikola Tesla

• Charles Eames
• Charles Kettering
• Farrington Daniels
• Leonardo da Vinci
• Nikola Tesla
• Robert Stirling - Stirling engine (external combustion)

Charles Ormond Eames, Jr (June 17, 1907 _ August 21, 1978) was an American designer, architect and filmmaker who, together with his wife Ray, is responsible for many classic, iconic designs of the 20th century. ... Charles Franklin Kettering (August 29, 1876 _ November 25, 1958), a. ... Leonardo da Vinci Leonardo da Vinci (April 15, 1452 – May 2, 1519) was an Italian Renaissance architect, musician, anatomist, inventor, engineer, sculptor, geometer, and painter. ... Nikola Tesla (July 10, 1856 - January 7, 1943) was a physicist, inventor, and electrical engineer of unusual intellectual brilliance and practical achievement. ... Reverend Dr Robert Stirling The Reverend Dr Robert Stirling (October 25, 1790 - June 6, 1878) was a Scottish clergyman, and inventor of a highly efficient heat engine. ...

Energy Culture

Societal Consciousness

• Ecology
• Energy balance
• Energy conservation
• Conservation of energy
• Earth Day
• Energy development - Ongoing effort to provide abundant and accessible energy, through knowledge, skills and constructions.
• Energy economics
• Future energy development
• Peak oil - predicts that future world oil production will soon reach a peak and then rapidly decline
• Renewable energy development

Ecology can mean either: the natural environment, or an analysis or study using the principles and methods of ecological science. ... Energy balance has meanings in several fields: In physics, energy balance is a systematic presentation of energy flows and transformations in a system. ... For the physical concept, see Conservation of energy. ... Conservation of energy (the first law of thermodynamics) is one of several conservation laws. ... Earth flag Earth Day is celebrated on the vernal equinox to mark the precise moment that spring begins in the Northern Hemisphere and autumn in the Southern Hemisphere. ... Energy development is the field concerned with providing abundant and accessible energy to all humans. ... Energy economics is a subfield of economics that focuses on energy relationships as the foundation of all other relationships. ... Future energy development face great challenges due to an increasing world population, demands for higher standards of living, demands for less pollution and a much discussed end to fossil fuels. ... The Hubbert peak theory, also known as peak oil, is an influential theory concerning the long-term rate of conventional oil production and depletion. ...

PAC issues

• Energy Tax Act
• Soft energy path - an energy use and development strategy delineated and promoted by some energy experts and activists

The Energy Tax Act (Public Law 95-318) was a law passed by the U.S. Congress in 1978 as part of the National Energy Act. ... The soft energy path is an energy use and development strategy delineated and promoted by some energy experts and activists, such as Amory Lovins and Tom Bender. ...

Energy Unit Terms

• Barrel of oil equivalent
• British thermal unit
• Calorie
• Current_solar_income - the amount of solar energy that falls as sunlight
• Direct current
• Electronvolt - (symbol: eV) is the amount of energy gained by a single unbound electron when it falls through an electrostatic potential difference of one volt
• Energy conversion - process of converting energy from one form to another
• Enthalpy
• Erg - (symbol "erg") unit of energy and mechanical work in the centimetre-gram-second (CGS) system of units
• EU energy label
• Fill factor - defined as the ratio of the maximum power (Vmp x Jmp) divided by the short-circuit current (Isc) and open-circuit voltage (Voc) in light current density - voltage (J-V) characteristics of solar cells.
• Foe (unit of energy) - unit of energy equal to 10⁴⁴ joules
• Foot-pound - (symbol ft·lbf or ft·lbf) is an Imperial and U.S. customary unit of mechanical work, or energy, although in scientific fields one commonly uses the equivalent metric unit of the joule (J). There are approximately 1.356 J/(ft·lb_f).
• Francis turbine the most common water turbine in use today
• Gibbs free energy
• Gigaton - Metric Unit of mass, equal to 1,000,000,000 (1 billion) Metric tons, 1,000,000,000,000 (1 trillion) kilograms
• Gray (unit) - (symbol: Gy), is the SI unit of energy for the absorbed dose of radiation. One gray is the absorption of one joule of radiation energy by one kilogram of matter. One gray equals 100 rad, an older unit.
• Heat
• Internal energy - (abbreviated E or U) is the total kinetic energy due to the motion of molecules (translational, rotational, vibrational) and the total potential energy associated with the vibrational and electric energy of atoms within molecules.
• Ionization energy - the (IE) of an atom is the energy required to strip it of an electron.
• Joule - (symbol J, also called newton meter, watt second, or coulomb volt)
• Kilowatt-hour - (symbol: kW·h) corresponds to one kilowatt (kW) of power being used over a period of one hour.
• Kinetic energy
• Mass driver
• Mass-energy equivalence - where mass has an energy equivalence, and energy has a mass equivalence
• Net energy gain
• Photoelectric effect
• Planck energy
• Potential energy - (U, or E_p), a kind of scalar potential, is energy by virtue of matter being able to move to a lower-energy state, releasing energy in some form
• Power beaming - Moving energy from one place to another through "empty space" (or air)
• Power factor - of an AC electric power system is defined as the ratio of the real power to the apparent power.
• Primary_energy - Energy contained in raw fuels and any other forms of energy received by a system as input to the system.
• Radiant energy - energy that is transported by waves
• Rotational energy - An object's rotational energy or angular kinetic energy is part of its total kinetic energy
• Solar radiation - radiant energy emitted by the sun, particularly electromagnetic energy
• Therm - (symbol thm) is a non-SI unit of heat energy. It was defined in the United States in 1968 as the energy equivalent of burning 100 cubic feet of natural gas at standard temperature and pressure. In the US gas industry its SI equivalent is defined as exactly 100,000 BTU_59°F or 105.4804 megajoules
• TPE - Ton Petroleum Equivalent (45,217.44 M joules)
• Tyson turbine - for river flow harnessing

The barrel of oil equivalent (bboe, sometimes BOE) is a unit of energy approximately equal to 5. ... The British thermal unit (BTU) is a non-metric unit of energy, used in the United States and, to a certain extent, the UK. The SI unit is the joule (J), which is used by most other countries. ... A calorie refers to a non SI unit of energy. ... The current solar income of the Earth, or an ecozone or ecoregion or any area, is the amount of solar energy that falls on it as sunlight. ... Direct current (DC or continuous current) is the continuous flow of electricity through a conductor such as a wire from high to low potential. ... An electronvolt (symbol: eV) is the amount of energy gained by a single unbound electron when it falls through an electrostatic potential difference of one volt. ... In engineering, energy conversion is any process of converting energy from one form to another. ... Enthalpy (symbolized H, also called heat content) is the sum of the internal energy of matter and the product of its volume multiplied by the pressure. ... ... Categories: Stub | Energy ... In physics, a foot-pound (symbol ft·lbf or ft·lbf) is an Imperial and U.S. customary unit of mechanical work, or energy, although in scientific fields one commonly uses the equivalent metric unit of the joule (J). ... Francis Turbine and generator The Francis turbine was developed by James B. Francis. ... In thermodynamics the Gibbs free energy is a state function of any system defined as G = H − T·S where G is the Gibbs free energy, measured in joules H is the enthalpy, measured in joules T is the temperature, measured in kelvins S is the entropy, measured in joules... A gigaton (or gigatonne) is a Metric Unit of mass, equal to 1,000,000,000 (1 billion) Metric tons, 1,000,000,000,000 (1 trillion) kilograms, or 1 quadrillion grams. ... A gray, (symbol: Gy), is the SI unit of energy for the absorbed dose of radiation. ... Heat (abbreviated Q, also called heat change) is the transfer of thermal energy between two bodies which are at different temperatures. ... The internal energy of a system (abbreviated E or U) is the total kinetic energy due to the motion of molecules (translational, rotational, vibrational) and the total potential energy associated with the vibrational and electric energy of atoms within molecules. ... ... The joule (symbol J, also called newton metre, or coulomb volt) is the SI unit of energy and work. ... The kilowatt-hour (symbol: kW·h) is a unit for measuring energy. ... Kinetic energy (also called vis viva, or living force) is energy possessed by a body by virtue of its motion. ... A mass driver for lunar launch (artists conception) A mass driver or electromagnetic catapult is a method of spacecraft propulsion that would use a linear motor to accelerate payloads up to high speeds. ... Mass-energy equivalence is where mass has an energy equivalence, and energy has a mass equivalence. ... Net Energy Gain is an important concept in energy economics, referring to the difference between the energy required to harvest the energy source against the energy provided by using that source. ... The photoelectric effect is the emission of electrons from a surface (usually metallic) upon exposure to, and absorption of, electromagnetic radiation (such as visible light and ultraviolet radiation) that is above the threshold frequency particular to each type of surface. ... The Planck energy is the natural unit of energy, denoted by EP. EP = c2(c / G)1/2 ≈ 1019 GeV, 543 kWh or 1. ... Potential energy (U, or Ep), a kind of scalar potential, is energy by virtue of matter being able to move to a lower-energy state, releasing energy in some form. ... Moving energy from one place to another through empty space (or air) is called beaming. Beaming enough energy to run a machine (such as a vehicle) is called power beaming. ... The power factor of an AC electric power system is defined as the ratio of the real power to the apparent power. ... Primary energy is energy contained in raw fuels and any other forms of energy received by a system as input to the system. ... Radiant energy, as defined by US Federal Standard 1037C, is energy in the form of electromagnetic waves. ... Rotating objects contain kinetic energy. ... Solar radiation is radiant energy emitted by the sun, particularly electromagnetic energy. ... The therm (symbol thm) is a non-SI unit of heat energy. ... TPE represents, among other things: the IATA airport code for Chiang Kai-shek International Airport serving Taipei, Republic of China (Taiwan) Total Power Exchange, a derivative of the concept of power exchange in a D/s relationship. ... The Tyson Turbine is a hydropower system that extracts power from the flow of water, as opposed to the fall of water which powers most hydropower systems. ...

Organizations

Covered at WikiPedia...

Energy Companies

• Enercon GmbH - Company based in Germany that operates in the wind turbine industry. One of the biggest producers in the world.
• United States Enrichment Corporation - contracts with the United States Department of Energy to produce Enriched uranium.

The United States Enrichment Corporation is a corporation that contracts with the United States Department of Energy to produce Enriched uranium. ...

Non-Profit Organizations

• Musicians United for Safe Energy

Musicians United for Safe Energy was a group founded in 1979 by Jackson Browne, Graham Nash, Bonnie Raitt, and John Hall of Orleans. ...

Writings

Book Reviews

• The Hype about Hydrogen - review of book by Joseph J. Romm

The Hype about Hydrogen, Fact and Fiction in the Race to Save the Climate is a book by Joseph J. Romm. ...

Essays

• Environmental concerns with electricity generation