Charging cars at home at night is not the way to go, study finds
The vast majority of electric vehicle owners charge their cars at home in the evening or overnight. We're doing it wrong, according to a new Stanford study.
Sep 22, 2022
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Energy & Green Tech
The vast majority of electric vehicle owners charge their cars at home in the evening or overnight. We're doing it wrong, according to a new Stanford study.
Sep 22, 2022
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Energy & Green Tech
The saying that "misfortune never comes alone" is also the title of a French short silent film from 1903. One could say the same about the climate crisis, which is closely linked to the environmental and energy crises. The ...
Apr 11, 2023
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Energy & Green Tech
Hydrogen can be produced by electrolysis of water, ideally with solar cells or wind power providing the electrical energy required. This "green" hydrogen is expected to play an important role in the energy system of the future. ...
Mar 20, 2023
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Engineering
A widely-used gas that is currently produced from fossil fuels can instead be made by an 'artificial leaf' that uses only sunlight, carbon dioxide and water, and which could eventually be used to develop a sustainable liquid ...
Oct 21, 2019
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Energy & Green Tech
In the first evaluation of evaporation as a renewable energy source, researchers at Columbia University find that U.S. lakes and reservoirs could generate 325 gigawatts of power, nearly 70 percent of what the United States ...
Sep 26, 2017
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Energy & Green Tech
Texas can be a model for the nation on how to effectively replace coal with wind and solar for the state's energy needs while meeting environmental goals, according to new research by Rice University engineers.
Mar 21, 2022
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Energy & Green Tech
Scientists from Nanyang Technological University, Singapore (NTU Singapore) have developed a low-cost device that can harness energy from wind as gentle as a light breeze and store it as electricity.
Oct 6, 2022
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Energy & Green Tech
As the climate crisis looms, scientists are racing to find solutions to common clean energy problems, including solar energy storage. Solar energy is one of the best renewable resources we have, but it has challenges that ...
Jun 24, 2022
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Energy & Green Tech
Green hydrogen, a source of clean energy that can be generated without using fossil fuels, has recently gained immense attention, as it can be potentially used to promote carbon neutrality. Korean researchers have succeeded ...
Jun 17, 2021
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Energy & Green Tech
Humans can do lots of things that plants can't do. We can walk around, we can talk, we can hear and see and touch. But plants have one major advantage over humans: They can make energy directly from the sun.
Jun 15, 2021
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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