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  2. Sources of electrical energy - Wikipedia

    en.wikipedia.org/wiki/Sources_of_electrical_energy

    Friction is the least-used of the six methods of producing energy. If a cloth rubs against an object, the object will display an effect called friction electricity. The object becomes charged due to the rubbing process, and now possesses an static electrical charge , hence it is also called static electricity .

  3. Electricity generation - Wikipedia

    en.wikipedia.org/wiki/Electricity_generation

    Distributed generation is the small-scale generation of electricity to smaller groups of consumers. This can also include independently producing electricity by either solar or wind power. In recent years distributed generation as has seen a spark in popularity due to its propensity to use renewable energy generation methods such as rooftop ...

  4. Cost of electricity by source - Wikipedia

    en.wikipedia.org/wiki/Cost_of_electricity_by_source

    The levelized cost of electricity (LCOE) is a metric that attempts to compare the costs of different methods of electricity generation consistently. Though LCOE is often presented as the minimum constant price at which electricity must be sold to break even over the lifetime of the project, such a cost analysis requires assumptions about the value of various non-financial costs (environmental ...

  5. Fossil fuel power station - Wikipedia

    en.wikipedia.org/wiki/Fossil_fuel_power_station

    A fossil fuel power station is a thermal power station which burns a fossil fuel, such as coal, oil, or natural gas, to produce electricity.Fossil fuel power stations have machinery to convert the heat energy of combustion into mechanical energy, which then operates an electrical generator.

  6. Electric power system - Wikipedia

    en.wikipedia.org/wiki/Electric_power_system

    A steam turbine used to provide electric power. An electric power system is a network of electrical components deployed to supply, transfer, and use electric power. An example of a power system is the electrical grid that provides power to homes and industries within an extended area.

  7. Template:Latest pie chart of world power by source - Wikipedia

    en.wikipedia.org/wiki/Template:Latest_pie_chart...

    Download as PDF; Printable version; In other projects ... 2021 world electricity generation by source. Total generation was 28 petawatt-hours. [1] Coal 36.0% ...

  8. Cogeneration - Wikipedia

    en.wikipedia.org/wiki/Cogeneration

    The energy distribution below is represented as a percent of total input energy: [47] Electricity = 45%; Heat + Cooling = 40%; Heat losses = 13%; Electrical line losses = 2%; Conventional central coal- or nuclear-powered power stations convert about 33–45% of their input heat to electricity. [48] [5] Brayton cycle power plants operate at up ...

  9. Environmental impact of electricity generation - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    Geothermal energy is the heat of the Earth, which can be tapped into to produce electricity in power plants. Warm water produced from geothermal sources can be used for industry, agriculture, bathing and cleansing. Where underground steam sources can be tapped, the steam is used to run a steam turbine.

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