Distributed wind energy brings value to remote and rural communities
No roads lead to St. Mary's, Alaska.
Mar 13, 2023
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Energy & Green Tech
No roads lead to St. Mary's, Alaska.
Mar 13, 2023
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Energy & Green Tech
Offshore wind power has the potential to provide all the electrical power needed by the Northeast with thousands of extremely large wind turbines located offshore. But one of the biggest hurdles to creating that reality is ...
Feb 24, 2023
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Engineering
Another extreme weather event has highlighted the weak points in New Zealand's critical infrastructure. As Cyclone Gabrielle ripped across the North Island, nearly 225,000 people lost power.
Feb 15, 2023
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Energy & Green Tech
Confronted by competition from Washington's vast green tech investment plan, European leaders opened the way Friday towards a relaxation of their own restrictions on state aid.
Feb 10, 2023
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Engineering
Adopting tidal power alongside other forms of renewable energy can significantly enhance energy security and go some way to enabling communities to fulfill their clean energy ambitions, a new study has shown.
Feb 9, 2023
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Energy & Green Tech
"We know a great deal about windmills on land, and something about fixed-bottom wind turbines at sea, but much less about floating wind turbines," says Geir Grasmo, Professor at the University of Agder (UiA).
Jan 26, 2023
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Energy & Green Tech
Off the coast of Portugal, a team of underwater robots is scanning the base of turbines on a wind farm and looking for signs of damage while aerial drones check the blades. The activity is part of a project to reduce inspection ...
Jan 23, 2023
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Energy & Green Tech
For six years, Pravinbhai Parmar's farm in Gujarat state in western India has been lined with rice, wheat and solar panels.
Jan 23, 2023
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Energy & Green Tech
Capturing the potential profits and jobs offered by a growing hydrogen industry may need as much innovation in regulatory agencies as it does in the research laboratories, according to new research from The University of ...
Jan 17, 2023
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Engineering
Clean energy is the leading solution for climate change. But solar and wind power are inconsistent at producing enough energy for a reliable power grid. Alternatively, lithium-ion batteries can store energy but are a limited ...
Jan 13, 2023
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Wind power is the conversion of wind energy into a useful form, such as electricity, using wind turbines. At the end of 2008, worldwide nameplate capacity of wind-powered generators was 121.2 gigawatts (GW). Wind power produces about 1.5% of worldwide electricity use, and is growing rapidly, having doubled in the three years between 2005 and 2008. Several countries have achieved relatively high levels of wind power penetration, such as 19% of stationary electricity production in Denmark, 11% in Spain and Portugal, and 7% in Germany and the Republic of Ireland in 2008. As of May 2009, eighty countries around the world are using wind power on a commercial basis.
Large-scale wind farms are connected to the electric power transmission network. Smaller turbines are used to provide electricity to isolated locations. Utility companies increasingly buy back surplus electricity produced by small domestic turbines. Wind energy as a power source is attractive as an alternative to fossil fuels, because it is plentiful, renewable, widely distributed, clean, and produces no greenhouse gas emissions; however, the construction of wind farms (as with other forms of power generation) is not universally welcomed due to their visual impact and other effects on the environment.
Wind power is non-dispatchable, meaning that for economic operation all of the available output must be taken when it is available, and other resources, such as hydropower, and standard load management techniques must be used to match supply with demand. The intermittency of wind seldom creates problems when using wind power to supply a low proportion of total demand. Where wind is to be used for a moderate fraction of demand, additional costs for compensation of intermittency are considered to be modest.
This text uses material from Wikipedia, licensed under CC BY-SA