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How many countries are using wind power for commercial use?

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83. denmark uses wind for over 25% of its power

Posted on Jan 15, 2013

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Posted on Jan 02, 2017

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Is China cancelling building coal burning plants as reported in the New York Times?


possible-- as it the chinese governments intention to use renewable energy
to that effect they are producing and using solar panels just about everywhere , converting dams to hydro power and wind where possible
it is because of the immense pollution problems in all of the major cities

Apr 02, 2017 | The Computers & Internet

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Laser Lidar Guidance Adds Power to Wind Turbines The wind industry may soon be...


Laser Lidar Guidance Adds Power to Wind Turbines

The wind industry may soon be dependent on a different kind of environmental awareness that has more to do with lasers than ecology.
A new laser pointer 100mw system that can be mounted on wind turbines allows them to prepare for the wind rushing toward their blades.

The lasers act like sonar for the wind, bouncing off microscopically small particulates and back to a fiber optic detector. That data is fed to an on-board processor that generates a three-dimensional view of the wind speed and direction. Subtle adjustments in the turbine blade's angle to the window allows it to capture more energy and protect itself in case of strong gusts.
The startup company that developed the Vindicator system, Catch the Wind, recently deployed a wind unit on a Nebraska Public Power District turbine. It increased the production of the unit (.pdf) by more than 10 percent, according to the company's white paper. If those numbers held across the nations' 35 gigawatts of installed wind capacity, the laser lidar (Light Detection and Ranging) sensors could add more than 3.5 gigawatts of wind capacity without adding a single additional turbine.
"This is what they call disruptive technology," said William Fetzer, vice president of business development for Catch the Wind. "There are roughly 80,000 to 90,000 wind turbines out in the world, and they don't have this technology."
Wind farms are only as good as their data. There have been revolutions in assessing wind resources over long time-scales, but the short-term gustiness of the wind has remained a problem.
Current wind turbines rely on wind-measuring instruments known as anemometers that are mounted to the back of the turbine's gear-housing unit, called a nacelle. The data from the wind is fed to a computer that optimizes the blades' configuration to capture the most energy from the wind.

In many cases, cup anemometers, which took their current form in the 1930s, are still used. They work well enough, but have to be positioned behind the blades, which subjects them to turbulence. And, importantly, they can only tell you how fast the wind was blowing after it passed. That doesn't help you with a freak gust of wind or any of the odd behavior that renewable energy developers have caught the wind exhibiting.
Fort Felker, director of the National Renewable Energy Laboratory's National Wind Technology Center, said he saw great potential in laser pointer 200mw lidar and similar sound-wave-based systems generally.
"Once you have a detailed knowledge of the coming wind, there are a lot of opportunities," said Felker told Wired.com.
While he estimates the amount of energy that could be captured is below Catch the Wind's 10 percent, he said the systems could really help reduce the wear-and-tear on machines caused by strong winds hitting improperly positioned blades.
"Researchers have already demonstrated that substantial reduction of loads is certainly possible," Felker said.
laser lidar, despite first being demonstrated for wind measurement in the 1970s, has been slow to catch on. The systems have been too expensive.
"Widespread deployment of the technique has so far been hampered by the expense and complexity of laser lidar systems," a 2005 NREL research report found. "However, the recent development of laser lidar systems based on optical fiber and components from the telecommunications industry promises large improvements in cost, compactness, and reliability so that it becomes viable to consider the deployment of such systems on large wind turbines."
Now, even the most venerable R&D testing group in the world, the Danish National Laboratory for Sustainable Energy's Ris?e wind outfit, is working on a turbine-mounted laser lidar system, though they only claim a 5 percent increase in electricity production.

Catch the Wind grew out of a small-business grant that the company's predecessor, Optical Air Data Systems, received from the U.S. military. They developed a laser lidar system for helicopters working in the dusty Iraq and Afghanistan terrain. The company developed their rugged and relatively lightweight laser lidar systems by marrying aerospace knowledge with emerging telecommunications tech like better fiber optic cables and laser pointer 300mw diodes.
Still, Catch the Wind may have a tough road ahead. The energy industry is notoriously risk averse. Besides, wind electricity in many places is already cheaper than wholesale electricity prices.
Erin Edholm, a representative for National Wind, a wind-farm developer that's put in more than 4,000 megawatts of turbines, said that the company's wind resource assessment team "has not used [laser lidar] or considered using it to date."
But that doesn't dim the hopes of Catch the Wind's Fetzer for the company's ultimate success.
"When you do disruptive technologies, it takes time," Fetzer said. "People don't believe that things are as bad as they are until they can see what we can do."
It helps that they don't need the wind turbine manufacturers to incorporate their technology to jump start their business. They've got what's known as a "bolt-on" solution, meaning it can be attached to existing turbines. They don't need manufacturers to incorporate their product to sell it to wind farms.
Still, some wind farmers may worry that the warranties they have on their turbines would be voided by adding a laser lidar system. Fetzer said Catch the Wind is working out the warranty issues.
General Electric, which is the largest wind turbine manufacturer in the United States, is not using or developing laser lidar specifically, either. Catch the Wind did recently sell one of their machines to a large, unnamed turbine manufacturer.
Though Catch the Wind is not discussing pricing for their products, Fetzer maintains that their customers will make their money back in the three-to-five year range that he says wind developers are looking for. The 2005 NREL report calculated a preliminary cost for a generic laser lidar system of less than $95,000, once production was up and running.
The development of controls for capturing the most energy from the wind has been a constant theme in wind energy research. But it's not always the company that develops the technology that reaps the rewards from its commercialization. Wind turbines in the 1980s struggled mightily to convert the wind's gusty capriciousness into steady rotary power.
At the time, the turbine's rotor had to turn at a constant rate. Researchers realized that their machines could operate over a larger range of speeds if the rotor could speed up or slow down in response to the wind, but they would need power electronics to translate the power into electricity suitable for the grid.

A multimillion dollar R&D program launched by laser pointer U.S. Windpower and the Electric Power Research Institute to commercialize a variable-speed rotor resulted in a mostly defective turbine design that helped push U.S. Windpower out of business. The variable-speed rotor went on to become a standard part of wind turbine designs.
Catch the Wind obviously is hoping not to suffer the same fate. They are exploring a variety of business models including sharing the revenue from the extra power they say their systems can generate. If they don't generate any more electricity, the wind turbine owner doesn't pay anything. If they do, Catch the Wind gets half the take.

on May 19, 2016 | Infiniter 2000 Green 532nm Laser Pointer

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Yamaha YFL-221 Student Flute, Silver plated, used. Serial #988986. Can you tell me approximately when this flute was manufactured?


This might help but no numbers given for Silver Plate

Model Name Production Period Serial Number Product type YFL-221N WIND INSTRUMENTS > FLUTES YFL-221N(2) WIND INSTRUMENTS > FLUTES YFL-221N(#570961-) #570961- WIND INSTRUMENTS > FLUTES YFL-221N(#754559-) #754559- WIND INSTRUMENTS > FLUTES YFL-221S 1979-1990 WIND INSTRUMENTS > FLUTES YFL-221S(2) 1990-2000 WIND INSTRUMENTS > FLUTES YFL-221(#553445-) #553445- WIND INSTRUMENTS > FLUTES YFL-221(#754559-) #754559-(USA ONLY) WIND INSTRUMENTS > FLUTES YFL-221(#757900-) #757900-(OTHER COUNTRYS) WIND INSTRUMENTS > FLUTES YFL-221GLHP WIND INSTRUMENTS > FLUTES YFL-221DX WIND INSTRUMENTS > FLUTES YFL-221U WIND INSTRUMENTS > FLUTES

Nov 07, 2015 | Yamaha YFL-221 Student Flute,...

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When was wind power first used?


technically, wind was first used to power sailboats thousands of years ago. Heron of Alexandria used wind to power his windwheel in the 1st century, which was the earliest record of using wind to power a machine

Jan 15, 2013 | Renewable Energy

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Blender has power but won"t turn on


Hello and Welcome to FixYa!
Well the mal-function can be due to numerous reasons. You need to choke out each possibility one by one.
Loose Connections ( Check for all the connections to the circuitry and motor). Bad Starter Button ( Check for the button switching using a Multi meter). Bad Motor Winding (Motor bushes or winding can be the bottle neck).
Check for the quoted possibilities and you'll soon find one good reason for the mal-function.. Feel free to ask anything regarding the trouble.

Concerned.

Feb 25, 2011 | Waring 7011S / 7011G Commercial Work Top...

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Cannot find manual for Carvall CCS1401 commercial fridge. As internal fan stopped working, Therefore not cooling


check continuity of winding of internal fan by using ohmmeter if no continuity read replace fan.also inspect the bushing and shafting if stock up apply lubricant or replace new fan.also check the connections if had a fuse busted replace it with new one

Jan 22, 2011 | Coldtech J4SRR-40B Commercial Refrigerator

1 Answer

Compressor won't kick on


Good day,
First step is to check to see if there is power getting to the compressor. If not you'll need to back up and find where the power was lost. Some models have a low pressure cut out pressure switch. One possibility.
Second, if power is at the compressor then you'll need to check the protective overload, start relay, and start/run capacitor if it uses one.
If everything checks out, using an ohm meter check the motor windings. They may be open ( no continuity) bad compressor.

Mar 04, 2010 | True GDM-12 Refrigerator Commercial

1 Answer

I've the 325 watts its 110V kitchen aid and I


You will need a 'step-down' transformer with a rating of at least 500 watts (~500 VA), a primary designed for 220 Volts and a secondary rated at 110-115 Volts. This type will have four terminals or leads and isolates the input from the output.
There is a non-isolating type called an 'autotransformer' which has one winding with a tap (total of three terminals) roughly in the middle. I use this type for certain devices but it is not as safe as the first-described type.
If you are living in a foreign country that uses the ~220 Volt standard, you can sometimes get one on 'semipermanent' loan from the local utility.

Oct 07, 2009 | KitchenAid K5SS Heavy Duty Commercial...

1 Answer

Can I Use My Camcorder In Another Country?


Each country or region has its own electric and color systems. Before using your camcorder abroad, check the following items: Power sources * You can use your camcorder in any country or area with the supplied AC Power Adapter within 100V to 240V, 50/60 Hz. * Use a commercially available AC plug Adapter, if necessary, depending on the design of the local wall outlet. **Note** The United States and most of the Western hemisphere use electrical systems operating at 110-120 volts. Almost every other country uses 220-240 volts as a standard. Provided that your power adapter displays the following information, (100V~240V) 50/60 hz - it can be used overseas. **You may require an adapter to change the plug shape to match the outlet. Color system You can view your recording in the viewfinder. However, to view it on a television or copy it to a videocassette recorder, the television or VCR must be NTSC compatible and have the appropriate audio/video jacks. Otherwise, you may need to use a transcoder. Note: You can make recordings with your camcorder and view pictures on the LCD from anywhere in the world.

Sep 07, 2005 | Samsung DouCam VP-D5000i Mini DV Digital...

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