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Entries for the ‘Wind Power Knowledge’ Category

Hummer 400w wind-solar hybrid wind generator for park

1. Hummer H1.25-400w wind-solar hybrid power system is an innovative ,environmentaly source .
2. It is cost effective and simple to install .
3. H1.25-400w wind-solar hybrid power  system is a new concept in amenity  lighting designed  for the 21st Century providing illumination at almost any  location remote from  the grid  electricity supply.
4. It is an innovative, environmentally friendly source,  an independent outdoor lighting  system that  is cost effective and simple to install almost anywhere.
5.As a professional manufacturer of wind turbines from 400w -50kw ,
we always provide the best solutions of energy saving and environmetal protection .
Main technical data of Hummer H1.25-400w wind generator,more about our products,pls visited :http://www.allwindenergy.com/wind-generator-400w.htm

Rated power
400

Maximum output power
600

Charging voltage (v)
12V

Blade quantity
3

Blade material
Nylon

Blade diameter(m)
1.25

Start-up wind speed (m/s)
2.5

Rated wind speed (m/s)
11

Rated rotating rate (r/min)
800

Wind energy utilizing ratio (Cp)
0.4

Generator output
Single-phase frequency conversion AC

Output AC frequency(HZ)
0-300

Rated charging current (A)
33.3

The maximum charging current (in a short time)(A)
45

Generator efficiency
>0.8

Tower diameter (mm)
65

Tower height(m)
9

weight of generator(kg)
5.5

Suggested Battery
100/120 Ah

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From coal mine to wind farm

Walking across the former site of the Dave Johnston Mine here, about half an hour outside Casper, you’d never know that over the course of 42 years, 104 million tons of coal was taken out of the ground.
But now, instead of having a heavy carbon footprint–and coal certainly does–these rolling hills have [...]

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How can wind turbines generate so much lunacy?

It would be hard to beat the sad gullibility with which the media last week reported the plans of Lord Mandelson and our Climate Change Secretary Ed Miliband to cover our countryside and sea with 10,000 more huge wind turbines. According to one newspaper, it would need “an area of only 70 square miles to [...]

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China Hummer Wind Generaotrs For 10KW

Home wind turbine has become a widely popular energy saving system around the world today . Find out how you can turn wind as energy when you build your own wind turbine today ! The characteristic of a home wind turbine is specially designed to be environmentally friendly and costs saving .With the existence of [...]

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Rural wind turbine plan rejected

Ecotricity wanted to build the 394ft (120m) turbines in Silton.
Hundreds of people packed the meeting in the Olive Bowl conference centre, in Gillingham, while another 100 who could not get in waited outside.
North Dorset District councillors went against their own planning officer’s recommendation to approve the scheme.
Save Our Silton campaigners waved banners and placards reading [...]

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Using Existing Infrastructure for Wind Turbines

The result of the Next Generation contest 2009 is out. A French team of an engineer along with two architects has won this year’s prestigious prize for “Wind-it” design. They are the first non-US winners of the prize. The team suggests to place wind turbines inside existing high-voltage electricity pylons. Names of the members of [...]

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Off-Grid System of hummer wind turbines

Generating equipment—wind generator
Rectify-charging controlling system—wind power controller and DC controller
Energy storing equipment— Accumulator
Converting equipment —inverter
Distribution equipment—low voltage casement and cable

Solutions:
Basic configuration
500W wind generator, 500w square inverter, 24v battery
Supply 220V power for daily lighting, color TV, washing machine, refrigerator, and little pump
It is the ideal choice for countryside, weather station, pasture, border post etc.

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New York City Building Water Towers Could be Turned into Wind Turbines

See that water tower in the photo above? Most of New York City’s buildings of a certain era have them. And Dr Majid Rashidi of Cleveland State University has a plan for them: Use them to generate wind power. Well, maybe not those towers specifically, but towers no more obtrusive than them. Here’s how:

Dr Rashidi [...]

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Small wind turbines blow out big sales

Sales of turbines big enough to serve a single home or office building grew rapidly last year and are poised for even faster growth this year, according to a report from the American Wind Energy Association.
The report, published on Thursday (click for PDF), found that sales of small wind turbines smaller than 100 kilowatts grew [...]

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Wind-diesel hybrid system

Generating equipment—wind generator, diesel generator
Rectify-charging controlling system—wind power generator controller and DC controller, diesel charging controller
Energy storing equipment— accumulator
Converting equipment —inverter
Distribution equipment—low voltage casement and cables
Solutions:
If the wind is strong enough, the wind generator can assure user’s demand. If not, the diesel generator will take the place of wind turbine to guarantee the stable power.

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