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  2. Flywheel energy storage - Wikipedia

    en.wikipedia.org/wiki/Flywheel_energy_storage

    Compared with other ways to store electricity, FES systems have long lifetimes (lasting decades with little or no maintenance; [2] full-cycle lifetimes quoted for flywheels range from in excess of 10 5, up to 10 7, cycles of use), [5] high specific energy (100–130 W·h/kg, or 360–500 kJ/kg), [5] [6] and large maximum power output.

  3. Uninterruptible power supply - Wikipedia

    en.wikipedia.org/wiki/Uninterruptible_power_supply

    Uninterruptible power supply. An uninterruptible power supply (UPS) or uninterruptible power source is a type of continual power system that provides automated backup electric power to a load when the input power source or mains power fails. A UPS differs from a traditional auxiliary / emergency power system or standby generator in that it will ...

  4. Nanogenerator - Wikipedia

    en.wikipedia.org/wiki/Nanogenerator

    Nanogenerator. A nanogenerator is a compact device that converts mechanical or thermal energy into electricity, serving to harvest energy for small, wireless autonomous devices. It uses ambient energy sources like solar, wind, thermal differentials, and kinetic energy.

  5. Renewable energy - Wikipedia

    en.wikipedia.org/wiki/Renewable_energy

    They are often much larger than fossil fuel power plants, needing areas of land up to 10 times greater than coal or gas to produce equivalent energy amounts. [244] More than 2000 renewable energy facilities are built, and more are under construction, in areas of environmental importance and threaten the habitats of plant and animal species ...

  6. Electricity generation - Wikipedia

    en.wikipedia.org/wiki/Electricity_generation

    e. 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. Consumable electricity is not freely available in ...

  7. List of wave power projects - Wikipedia

    en.wikipedia.org/wiki/List_of_wave_power_projects

    Constructed by Kværner Brug AS in 1985, the plant had a 500 kW self-rectifying Wells turbine turbine with electric generator, and operated for four years before it was destroyed by a severe winter storm. It was constructed into the cliff face, from concrete up to a level of +3.5 m with a 20 m high steel structure above. [119] [133]

  8. Hydrogen-cooled turbo generator - Wikipedia

    en.wikipedia.org/.../Hydrogen-cooled_turbo_generator

    The first range (80–100% H 2) is to monitor the hydrogen purity during normal operation. The second (0–100% H 2) and third (0–100% CO 2) measuring ranges allow safe opening of the turbines for maintenance. [6] Hydrogen has very low viscosity, a favorable property for reducing drag losses in the rotor. These losses can be significant due ...

  9. Marx generator - Wikipedia

    en.wikipedia.org/wiki/Marx_generator

    A Marx generator is an electrical circuit first described by Erwin Otto Marx in 1924. [1] Its purpose is to generate a high- voltage pulse from a low-voltage DC supply. Marx generators are used in high-energy physics experiments, as well as to simulate the effects of lightning on power-line gear and aviation equipment.

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