Video: What is marine energy?
So you have heard of solar power and wind energy, but what about their younger cousin, marine energy?
Jan 10, 2023
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Energy & Green Tech
So you have heard of solar power and wind energy, but what about their younger cousin, marine energy?
Jan 10, 2023
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15
Energy & Green Tech
To manage future electricity demand in line with the EU's Energy Roadmap 2050, power grids need to rely on both supply and demand flexibility and be structured as a system of systems.
Dec 23, 2022
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Software
Standing among solar arrays and power grid equipment at the National Renewable Energy Laboratory (NREL), you might hear a faint, distorted melody buzzing from somewhere. You are not hallucinating—that gray box really is ...
Dec 14, 2022
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Energy & Green Tech
Nearly 10% of today's electricity in the United States comes from wind power. The renewable energy source benefits climate, air quality, and public health by displacing emissions of greenhouse gases and air pollutants that ...
Dec 2, 2022
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Energy & Green Tech
At least $25.7 billion in new US clean-energy factories are in the works, thanks in part to the generous subsidies in President Joe Biden's landmark climate law. Most of these projects—and the jobs that come with them—are ...
Nov 30, 2022
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Engineering
Every second of the day, Mother Nature puts on a spectacular show with an average of around 100 lightning bolts striking the Earth's surface.
Nov 22, 2022
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Energy & Green Tech
In past projects, Professor Lucy Pao and her research group have focused on designing the best control systems for wind turbines—systems aimed at maximizing power production or reducing structural loads.
Nov 22, 2022
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Energy & Green Tech
Global leaders at COP27 are discussing how best to mitigate greenhouse gas emissions and maintain global warming below 2°C to avoid catastrophic climate change.
Nov 17, 2022
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Engineering
The strong winds blowing over Australia's rugged coastlines will soon power many of our homes, as offshore wind farms are poised to begin construction. But our new research highlights the need to ensure any potential risks ...
Oct 26, 2022
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Energy & Green Tech
Moving rows of solar panels farther apart can increase efficiency and improve economics in certain instances by allowing greater airflow to whisk away some heat, according to a new analysis.
Oct 25, 2022
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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