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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. There are two main types of ...

  3. Electricity generation - Wikipedia

    en.wikipedia.org/wiki/Electricity_generation

    Electricity generation is the process of generating electric power from sources of primary energy. For utilities in the electric power industry , it is the stage prior to its delivery ( transmission , distribution , etc.) to end users or its storage , using for example, the pumped-storage method.

  4. Renewable energy - Wikipedia

    en.wikipedia.org/wiki/Renewable_energy

    Levelized cost of energy (LCOE) is a measure of the average net present cost of electricity generation for a generating plant over its lifetime. Past costs of producing renewable energy declined significantly, [ 186 ] with 62% of total renewable power generation added in 2020 having lower costs than the cheapest new fossil fuel option.

  5. List of energy resources - Wikipedia

    en.wikipedia.org/wiki/List_of_energy_resources

    Magnetohydrodynamic, generator, MHD generator or dynamo transforms thermal energy or kinetic energy directly into electricity; Methane clathrate; Methanol; Methanol economy; Natural gas; Natural gas field; Natural gas vehicle; Nuclear energy – energy in the nucleus or core of atoms [1] Nuclear fusion; Nuclear reactor; Nuclear reprocessing ...

  6. Hydropower - Wikipedia

    en.wikipedia.org/wiki/Hydropower

    Share of electricity production from hydropower, 2023 [16] Hydroelectricity is the biggest hydropower application. Hydroelectricity generates about 15% of global electricity and provides at least 50% of the total electricity supply for more than 35 countries. [17] In 2021, global installed hydropower electrical capacity reached almost 1400 GW ...

  7. Hybrid power - Wikipedia

    en.wikipedia.org/wiki/Hybrid_power

    Hybrid systems provide a high level of energy security through the mix of generation methods, and often will incorporate a storage system (battery, fuel cell) or small fossil fueled generator to ensure maximum supply reliability and security. [6]

  8. Waste-to-energy - Wikipedia

    en.wikipedia.org/wiki/Waste-to-energy

    The most common method of WtE is direct combustion of waste to produce heat, which can then be used to generate electricity via steam turbines. This method is widely employed in many countries and offers a dual benefit: it disposes of waste while generating energy, making it an efficient process for both waste reduction and energy production.

  9. Energy harvesting - Wikipedia

    en.wikipedia.org/wiki/Energy_harvesting

    Energy harvesting (EH) – also known as power harvesting, energy scavenging, or ambient power – is the process by which energy is derived from external sources (e.g., solar power, thermal energy, wind energy, salinity gradients, and kinetic energy, also known as ambient energy), then stored for use by small, wireless autonomous devices, like those used in wearable electronics, condition ...