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Wind Turbines

Wind energy has been used for centuries, for grinding grain, pumping water and generating electricity. Small wind turbines were an important source of electricity for rural families in North America in the 1920s and 1930s. Wind energy faded into the background with the rural electrification efforts of the 1940s and the development of reliable small engine generators.

Today, we are seeing wind gaining tremendous popularity in generating significant amounts of power both off-grid and as a source of energy for large utilities.

How it works
Wind turns the blades of the turbine which spins a shaft within the turbine structure. The shaft drives a generator to produce electricity. The electricity is either used or stored in batteries.

Types of Wind Generators
There are many different types and styles of wind generators. Many of the older, multi-blade units as seen on farms across the nation generate mechanical energy, often used to pump water.
Small-scale units (under 3 kW): used to charge batteries or direct use (such as pumping water). We feature a selection of small scale units on the following pages.
Medium sized units (up to 50 kW): used in a grid-intertie environment to generate power and feed it to the utility grid. Energy Alternatives designs and installs medium scale units. Due to the nature of these projects, each system requires a detailed assessment prior to quotation or ordering products. Please contact us for further information.
Large-scale units (megawatts): large, towering units that cost millions of dollars and generate power to run hundreds or thousands of homes or businesses. Generally suited to large utilities and power co-operatives.

 
Air-X 400 watt wind generator, 12V
Introducing the latest evolution in small wind turbines. The AIR-X wind generator builds upon what made AIR the world's #1 selling small wind turbine with new technology previously found only in today's state-of-the-art mega-watt-class wind turbines. All of these features are primarily found within the body of the turbine. The new microprocessor based speed control results in increased performance, improved battery charging capability and the reduction of “flutter” noise from the machine. ...
List Price:$639.45 
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Air-X 400 watt wind generator, 24V
Introducing the latest evolution in small wind turbines. The AIR-X wind generator builds upon what made AIR the world's #1 selling small wind turbine with new technology previously found only in today's state-of-the-art mega-watt-class wind turbines. All of these features are primarily found within the body of the turbine. The new microprocessor based speed control results in increased performance, improved battery charging capability and the reduction of “flutter” noise from the machine. ...
List Price:$639.45 
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Air-X marine 400 watt, 12 volt wind
Introducing the latest evolution in small wind turbines. The AIR-X wind generator builds upon what made AIR the world's #1 selling small wind turbine with new technology previously found only in today's state-of-the-art mega-watt-class wind turbines. All of these features are primarily found within the body of the turbine. The new microprocessor based speed control results in increased performance, improved battery charging capability and the reduction of “flutter” noise from the machine. ...
List Price:$807.03 
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Air-X marine 400 watt, 24 volt wind
Introducing the latest evolution in small wind turbines. The AIR-X wind generator builds upon what made AIR the world's #1 selling small wind turbine with new technology previously found only in today's state-of-the-art mega-watt-class wind turbines. All of these features are primarily found within the body of the turbine. The new microprocessor based speed control results in increased performance, improved battery charging capability and the reduction of “flutter” noise from the machine. ...
List Price:$807.03 
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AIR INDUSTRIAL 400 watt, no regulator
Regardless of the environment or application, Southwest Windpower has the wind turbine that can meet your needs. From offshore to mountain tops to global expeditions, the AIR Industrial is sure to keep your batteries charged.

Minimize down times and reduce operating costs with an AIR Industrial wind turbine.

Based on the world's best selling wind turbine, the AIR Industrial has been designed to survive the harshest mountain-top and offshore sites.

When the AIR Industrial is ...
List Price:$824.68 
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Bergey Excel 7.5 kW wind turbine 120/240

The BWC EXCEL is a modern 7 meter (23 ft) diameter, 10,000W wind turbine designed for high reliability, low maintenance, and automatic operation in adverse weather conditions. It is available in three configurations: battery charging, water pumping, and grid-connected. The BWC Excel is a ruggedly built turbine that comes with the longest warranty (5 years) in the industry.

Battery charging BWC EXCEL's can be supplied with outputs of 24, 48, 120 or 240 VDC. They are well
List Price:$21,995.00 
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Bergey Excel 7.5 kW wind turbine 48VDC,

The BWC EXCEL is a modern 7 meter (23 ft) diameter, 10,000W wind turbine designed for high reliability, low maintenance, and automatic operation in adverse weather conditions. It is available in three configurations: battery charging, water pumping, and grid-connected. The BWC Excel is a ruggedly built turbine that comes with the longest warranty (5 years) in the industry.

Battery charging BWC EXCEL's can be supplied with outputs of 24, 48, 120 or 240 VDC. They are well
List Price:$22,945.00 
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Bergey Excel 10 kW wind turbine with

The BWC EXCEL is a modern 7 meter (23 ft) diameter, 10,000W wind turbine designed for high reliability, low maintenance, and automatic operation in adverse weather conditions. It is available in three configurations: battery charging, water pumping, and grid-connected. The BWC Excel is a ruggedly built turbine that comes with the longest warranty (5 years) in the industry.

Battery charging BWC EXCEL's can be supplied with outputs of 24, 48, 120 or 240 VDC. They are well
List Price:$27,995.00 
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Bergey XL.1 24 VDC wind turbine
With a rotor diameter of 2.5 meters (8.2 ft) and a peak output of approximately 1,600 watts the XL.1 is intended for the off-grid home market in North America and for rural electrification programs in developing countries. It is also a perfect upgrade system for current owners of micro-turbines, such as the Air 303 or 403.

The XL.1 combines a number of advanced technical features, including a completely new airfoil (patent pending), to provide the highest efficiency yet achieved in a small

List Price:$2,599.50 
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Skystream 3.7 1.8 KW Grid Tie Wind Gen
Southwest Windpower Skystream 3.7 The Skystream 3.7 is a new generation wind generator that hooks up to your home to reduce or eliminate your montly electric bill. It's the first all-inclusive wind generator (with control and inverter built-in)designed to provide quiet, clean electricity in very low winds. This makes the Skystream ideal for residential homes and small businesses.

Skystream is available on towers ranging from 35’ (10.67m) to 110’ (33.5m). Its universal inverter will ...
List Price:$5,477.50 
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Whisper 100, 900 watt,12-48 VDC wind gen
Whisper 100 Land Wind Generator w/multi voltage charge controller

Whisper 100 - is designed to operate in a site with medium to high wind speed averages of 12 mph, 5.4 m/s, and greater. The Whisper 100 provides 100+ kWh per month, 3.4 kWh per day, in a 12 mph average wind speed location. The Whisper 100, with its 7 ft. (2.1m) rotor diameter and 40 sq. ft. swept area, is rugged enough for extreme environments. The redesigned Whisper 100 turbine incorporates a permanent magnet ...

List Price:$2,279.00 
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Whisper 200 High Voltage Wind Generator
Southwest Windpower's Whisper 200 High Voltage Wind Turbine is 220V with optional Whisper Multi voltage Charge Controller & optional transformer. Default is 24VDC, can be configured for 12 or 48VDC.

The Whisper 200 High Voltage has an all-new look featuring a cast aluminum frame and smooth, quiet operation of the patented "angle-governor" furling design.

The bigger brother to the Whisper 100, the Whisper 200 features a 10 ft (3.1m) rotor diameter and an 80 sq. ft. swept area that ...
List Price:$2,638.73 
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Whisper 200,1000 watt, 12-48V w/ control
Whisper 200 Land Wind Generator w/multi voltage charge controller

Whisper 200 -is designed for the user located in low to moderate wind speed averages (less than 12mph, 5.4m/s).

The bigger brother to the Whisper 100, the Whisper 200 features a 10 ft (3.1m) rotor diameter and an 80 sq. ft. swept area that provides the user with greater output at low wind speed averages. The Whisper 200 has twice the swept blade area, providing double the potential energy as compared to the ...
List Price:$2,715.80 
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Whisper 500, 3kW, 24 VDC wind turbine
Whisper 500 Ez Wire Wind/Control 24v

Serious power from a medium size small wind turbine. The Whisper 500 can produce enough energy to power an entire home. Formerly the Whisper 175, the Whisper 500 was completely redesigned in 2004 to work in harsh high wind environments. The Whisper 500 is a two bladed fiberglass reinforced blade and incorporates the patented side furling design that optimizes output at any wind speed. Assuming a 12 mph (5.4 m/s) wind, a Whisper 500 will produce as ...
List Price:$6,547.00 
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Whisper 500, 3kW, 48 VDC wind turbine
Whisper 500 Ez Wire Wind/Control 48v

Serious power from a medium size small wind turbine. The Whisper 500 can produce enough energy to power an entire home. Formerly the Whisper 175, the Whisper 500 was completely redesigned in 2004 to work in harsh high wind environments. The Whisper 500 is a two bladed fiberglass reinforced blade and incorporates the patented side furling design that optimizes output at any wind speed. Assuming a 12 mph (5.4 m/s) wind, a Whisper 500 will produce as ...
List Price:$6,547.00 
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Whisper 500, 3kW, 220V,wind turbine
Whisper 500 220V w/EZ Wire Wind/PV Controller

Serious power from a medium size small wind turbine. The Whisper 500 can produce enough energy to power an entire home. Formerly the Whisper 175, the Whisper 500 was completely redesigned in 2004 to work in harsh high wind environments. The Whisper 500 is a two bladed fiberglass reinforced blade and incorporates the patented side furling design that optimizes output at any wind speed. Assuming a 12 mph (5.4 m/s) wind, a Whisper 500 will ...
List Price:$6,551.20 
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