Energy & Green Tech

Growth of wind energy points to future challenges, promise

Advances in adapting the technology for cold climates and offshore use and better methods for predicting wind conditions have fanned significant growth of the use of wind turbines for electricity in the last 40 years. A new ...

Energy & Green Tech

New Michael Moore-backed doc tackles alternative energy

What if alternative energy isn't all it's cracked up to be? That's the provocative question explored in the documentary "Planet of the Humans," which is backed and promoted by filmmaker Michael Moore and directed by one of ...

Energy & Green Tech

Fold-out energy tower for festivals is ready for practical use

Almost all festivals in Europe use polluting diesel generators as their power supply. As a sustainable alternative, TU/e researchers and 9 companies have developed a 21-meter high fold-out tower with solar collectors and ...

Business

Siemens pins hopes on rail as manufacturing gloom hits home

German industrial conglomerate Siemens reported Thursday falling profits in its third quarter across most of its sprawling operations as manufacturers worldwide suffered, but said it could still reach full-year targets.

Energy & Green Tech

Wind power vulnerable to climate change in India

The warming of the Indian Ocean, caused by global climate change, may be causing a slow decline in wind power potential in India, according to a new study from the Harvard John A. Paulson School of Engineering and Applied ...

Energy & Green Tech

Wind turbine swap in Denmark turns focus on superconductors

The EcoSwing consortium announced it has taken a special generator to a site in Denmark. This was momentous. A previously installed permanent magnet generator was now swapping places with a new superconducting device. The ...

Energy & Green Tech

Wind farms and reducing hurricane precipitation

With the United States being pummeled over the last couple of years with several high-category, high-damage hurricanes, the University of Delaware's Cristina Archer recently published a paper that discovered an unexpected ...

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Wind turbine

A wind turbine is a rotating machine which converts the kinetic energy in wind into mechanical energy. If the mechanical energy is used directly by machinery, such as a pump or grinding stones, the machine is usually called a windmill. If the mechanical energy is then converted to electricity, the machine is called a wind generator, wind power unit (WPU), or wind energy converter (WEC).

This article discusses electric power generation machinery. The windmill article discusses machines used for grain-grinding, water pumping, etc. The article on wind power describes turbine placement, economics and public concerns. The wind energy section of that article describes the distribution of wind energy over time, and how that affects wind-turbine design.

This text uses material from Wikipedia, licensed under CC BY-SA