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  2. Renewable energy - Wikipedia

    en.wikipedia.org/wiki/Renewable_energy

    Renewable energy in developing countries is an increasingly used alternative to fossil fuel energy, as these countries scale up their energy supplies and address energy poverty. Renewable energy technology was once seen as unaffordable for developing countries. [ 200 ]

  3. Lists of renewable energy topics - Wikipedia

    en.wikipedia.org/wiki/Lists_of_renewable_energy...

    Renewable energy is generally defined as energy that comes from resources which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat. [1] Renewable energy replaces conventional fuels in four distinct areas: electricity generation , air and water heating/cooling, motor fuels , and rural ...

  4. Inverter-based resource - Wikipedia

    en.wikipedia.org/wiki/Inverter-based_resource

    An inverter-based resource (IBR) is a source of electricity that is asynchronously connected to the electrical grid via an electronic power converter ("inverter"). The devices in this category, also known as converter interfaced generation ( CIG ), include the variable renewable energy generators (wind, solar) and battery storage power stations ...

  5. Portal:Renewable energy/Intro - Wikipedia

    en.wikipedia.org/wiki/Portal:Renewable_energy/Intro

    Renewable energy is generally defined as energy that comes from resources which are naturally replenished on a human timescale such as sunlight, wind, rain, tides, waves and geothermal heat. Renewable energy replaces conventional fuels in four distinct areas: electricity generation , hot water / space heating , motor fuels , and rural (off-grid ...

  6. United Nations Framework Classification for Resources

    en.wikipedia.org/wiki/United_Nations_Framework...

    In 2009, a simplified United Nations Framework Classification for Fossil Energy and Mineral Reserves and Resources 2009 (UNFC-2009) was published. [8] In response to the application of UNFC being extended to renewable energy, injection projects for geological storage and anthropogenic resources, the name was changed in 2017 to the United ...

  7. World energy resources - Wikipedia

    en.wikipedia.org/wiki/World_energy_resources

    Renewable resources are available each year, unlike non-renewable resources, which are eventually depleted. A simple comparison is a coal mine and a forest. While the forest could be depleted, if it is managed it represents a continuous supply of energy, vs. the coal mine, which once has been exhausted is gone.

  8. Wave power - Wikipedia

    en.wikipedia.org/wiki/Wave_power

    The potential energy density is equal to the kinetic energy, [1] both contributing half to the wave energy density E, as can be expected from the equipartition theorem. The waves propagate on the surface, where crests travel with the phase velocity while the energy is transported horizontally with the group velocity .

  9. Renewable resource - Wikipedia

    en.wikipedia.org/wiki/Renewable_resource

    Oceans often act as renewable resources. Sawmill near Fügen, Zillertal, Austria Global vegetation. A renewable resource (also known as a flow resource [note 1] [1]) is a natural resource which will replenish to replace the portion depleted by usage and consumption, either through natural reproduction or other recurring processes in a finite amount of time in a human time scale.