enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Hydropower - Wikipedia

    en.wikipedia.org/wiki/Hydropower

    This means that the rainy season increases electricity generation compared to the dry season. [20] The size of hydroelectric plants can vary from small plants called micro hydro, to large plants that supply power to a whole country. As of 2019, the five largest power stations in the world are conventional hydroelectric power stations with dams ...

  3. Marine current power - Wikipedia

    en.wikipedia.org/wiki/Marine_current_power

    The main countries where studies were carried out were the UK, Canada, and Japan. In 1992–1993 the Tidal Stream Energy Review identified specific sites in UK waters with suitable current speed to generate up to 58 TWh/year. It confirmed a total marine current power resource capable theoretically of meeting some 19% of the UK electricity demand.

  4. Hydroelectricity - Wikipedia

    en.wikipedia.org/wiki/Hydroelectricity

    Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies 15% of the world's electricity , almost 4,210 TWh in 2023, [ 1 ] which is more than all other renewable sources combined and also more than nuclear power . [ 2 ]

  5. Marine energy - Wikipedia

    en.wikipedia.org/wiki/Marine_energy

    The term marine energy encompasses both wave power i.e. power from surface waves, and tidal power i.e. obtained from the kinetic energy of large bodies of moving water. Offshore wind power is not a form of marine energy, as wind power is derived from the wind, even if the wind turbines are placed over water.

  6. Hydroelectric power in the United States - Wikipedia

    en.wikipedia.org/wiki/Hydroelectric_power_in_the...

    The amount of hydroelectric power generated is strongly affected by changes in precipitation and surface runoff. [4] Hydroelectric stations exist in at least 34 US states. The largest concentration of hydroelectric generation in the US is in the Columbia River basin, which in 2012 was the source of 44% of the nation's hydroelectricity. [5]

  7. Small hydro - Wikipedia

    en.wikipedia.org/wiki/Small_hydro

    Small hydro is the development of hydroelectric power on a scale suitable for local community and industry, or to contribute to distributed generation in a regional electricity grid. [1] Exact definitions vary, but a "small hydro" project is less than 50 megawatts (MW), and can be further subdivide by scale into "mini" (<1MW), " micro " (<100 ...

  8. Water turbine - Wikipedia

    en.wikipedia.org/wiki/Water_turbine

    A wicket gate, or guide vane, is a ring of gates (or vanes) surrounding a water turbine which control the flow of water entering it; varying the aperture between them manages the rate of the turbine's spin, and thereby the amount of electricity generated.

  9. Electricity sector in Uruguay - Wikipedia

    en.wikipedia.org/wiki/Electricity_sector_in_Uruguay

    The power system exhibits characteristics and issues of hydro-based generation. The apparently wide reserve margin conceals the vulnerability to hydrology. In dry years it is necessary to import over 25% of the demand from Argentinian and Brazilian markets. [10] About 56% of generation capacity is owned and operated by UTE, the national utility ...