Energy & Green Tech
While the United States has excellent wind resources over much of the country, some locations are less windy and, as a result, have not seen much wind energy development. Harnessing wind power in a cost-effective manner has ...
Sep 25, 2023
0
23
Energy & Green Tech
Curious about decarbonizing your personal transport? Perhaps soaring fuel costs, new financial rebates and vehicle options has sparked your interest? Maybe it is your growing appetite for environmental action?
Sep 25, 2023
0
1
Energy & Green Tech
Smart meters have become commonplace in the Netherlands: the vast majority of households now have one in their fuse box. And yet, some 10 years after their introduction, there are still many questions and challenges surrounding ...
Sep 25, 2023
0
2
Energy & Green Tech
Researchers have found how to convert cost free forest waste, like pine cones, into carbon materials useful for energy storage. The method allows for easy and environmentally friendly dispersion of carbon in water, even when ...
Sep 25, 2023
0
22
Energy & Green Tech
Morocco has voiced ambitious plans to become North Africa's top player in the emerging "green hydrogen" sector, with plans to export the clean-burning fuel to Europe.
18 hours ago
0
13
Energy & Green Tech
Two senior National Renewable Energy Laboratory (NREL) researchers recently published an article in the Journal of Photovoltaics tracking changes to the world's electricity supply over the past several years.
10 hours ago
0
31
Energy & Green Tech
Britain's energy needs could be met entirely by wind and solar, according to a policy brief published today by Oxford's Smith School of Enterprise and the Environment.
Sep 26, 2023
0
17
Energy & Green Tech
The U.S. offshore wind energy project development and operational pipeline reached a potential generating capacity of 52,687 megawatts (MW) at the end of May 2023, according to a National Renewable Energy Laboratory (NREL) ...
Sep 26, 2023
0
11
Energy & Green Tech
The window to limit human-caused warming to a globally agreed goal is narrowing but still open because of the huge growth of solar energy and electric vehicles sales worldwide, a report said Tuesday.
Sep 26, 2023
0
3
Energy & Green Tech
People across Kenya were mysteriously plunged into darkness last month as the country suffered its worst power outage in a generation—except for a tiny remote village.
Sep 26, 2023
0
17
In physics, energy (from the Greek ἐνέργεια - energeia, "activity, operation", from ἐνεργός - energos, "active, working") is a scalar physical quantity that describes the amount of work that can be performed by a force, an attribute of objects and systems that is subject to a conservation law. Different forms of energy include kinetic, potential, thermal, gravitational, sound, light, elastic, and electromagnetic energy. The forms of energy are often named after a related force.
Any form of energy can be transformed into another form, but the total energy always remains the same. This principle, the conservation of energy, was first postulated in the early 19th century, and applies to any isolated system. According to Noether's theorem, the conservation of energy is a consequence of the fact that the laws of physics do not change over time.
Although the total energy of a system does not change with time, its value may depend on the frame of reference. For example, a seated passenger in a moving airplane has zero kinetic energy relative to the airplane, but non-zero kinetic energy relative to the Earth.
This text uses material from Wikipedia, licensed under CC BY-SA
