Solar power, wind power and the lot – the growing use of renewable energy sources is resulting in substantial fluctuations in energy production. Fraunhofer researchers have now made it possible to design industrial processes ...
Energy & Green Tech
May 06, 2019
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7
To integrate volatile renewable sources into the energy supply, capacities of the power grid have to be increased. The need for new lines can be reduced by better utilization of existing lines as a function of weather conditions. ...
Energy & Green Tech
May 06, 2019
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49
Households and businesses that generate their own power through micro-renewables, such as solar panels and wind turbines, may soon be able to decide where to distribute their extra energy thanks to funding from the Engineering ...
Energy & Green Tech
Apr 30, 2019
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10
Imagine a world in which half of our electricity is generated renewably by offshore wind farms. Now imagine a powerful hurricane hitting the coast where that farm is located. If developers, engineers and policy makers haven't ...
Energy & Green Tech
Apr 18, 2019
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Chancellor Angela Merkel on Tuesday officially opened a massive wind farm in the Baltic Sea, calling it a project of "national significance" for Germany's "energy transition" towards renewables.
Energy & Green Tech
Apr 16, 2019
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42
The great advantage of fossil fuels over renewable energy is that the sun doesn't always shine and the wind doesn't always blow and these "intermittent" sources of energy may not be reliable enough to power our economy. This ...
Energy & Green Tech
Apr 08, 2019
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15
A team of researchers from several institutions in the U.K. has found evidence that suggests some seabirds may benefit from the existence of human-built offshore structures. In their paper published in the journal Communications ...
Over the past decade, wind power production in the U.S. has tripled, becoming the largest source of renewable energy in the country, the American Wind Energy Association has reported. There are more than 56,800 wind turbines ...
Environment
Apr 03, 2019
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85
The European Union's use of renewable energy—such as hydropower, wind and solar—reached 17.5 percent in 2017, keeping it on track for a target of 20 percent by 2020.
Energy & Green Tech
Mar 31, 2019
3
51
When sea-faring nations began to explore new regions of the world, one of their biggest concerns in making the journey safely was how to cope with weather. They could harness the wind for power. They could rely on the Sun ...
Space Exploration
Mar 28, 2019
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39
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
