Vendor List
The prices included for the wind generators in this list do not include the cost of the tower or installation, unless noted.
Abundant Renewable Energy (ARE)
http://www.abundantre.com/ARE_Wind_Turbines.htm
Commercial availability: Two models, ARE 110 and ARE 442, available through dealers in 35 states.
Sales figures: n/a
States with commercial installations: Alaska, Colorado, Idaho, Iowa, Massachusetts, Michigan, Montana, New York, North Carolina, Ohio, Oregon, Texas, Utah, Vermont, Washington, and West Virginia.
Examples of actual installations (in addition to case studies): Two in Newberg, Oregon; two in Martha’s Vineyard, Massachusetts.
Technical specifications:
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ARE 110
· Rated power (kW): 2.5
· Rotor diameter (in feet): 11.8
· Swept area (in square feet): 110
· Cut-in wind speed (mph): Starts at 8 and runs down to 5
· Rated wind speed (mph): 25
· kWh/month at average wind speeds (kWh):
125 (8 mph); 275 (10 mph); 425 (12 mph);
575 (14 mph)
· Peak output (watts): 3,000
· RPM at rated output: 280
· Blade material: Molded fiberglass
· Tip speed ratio: n/a
· Cost (U.S. dollars): $12,650 for grid-connected system, including wind turbine with slip rings, SMA inverter, voltage clamp, and resistor load; lightning protection system available
· Years in production: 2
· Warranty (years): 5
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ARE 442
· Rated power (kW): 10
· Rotor diameter (in feet): 23.6
· Swept area (in square feet): 442
· Cut-in wind speed (mph): Starts at 8 and runs down to 5
· Rated wind speed (mph): 25
· kWh/month at average wind speeds (kWh):
625 (8 mph); 1,175 (10 mph); 1,825 (12 mph);
2,500 (14 mph)
· Peak output (watts): 12,000
· RPM at rated output: 160
· Blade material: Molded fiberglass
· Tip speed ratio: n/a
· Cost (U.S. dollars): $39,600 for grid-connected system, including wind turbine with slip rings, two SMA inverters, voltage clamp, and resistor load; lightning protection system available for $2,500
· Years in production: 2
· Warranty (years): 5
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Bergey Windpower
http://www.bergey.com
Commercial availability: XL.1 and Excel models available nationwide.
Sales figures: n/a
State with commercial installations: Installations in all 50 states.
Examples of actual installations (in addition to case studies): Malaga, Washington; Oak Hills, California; Charlotte, Vermont; Tehachapi, California; Norman, Oklahoma; Tuttle, Oklahoma; Fort Hill, Pennsylvania.
Technical specifications:
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Bergey XL.1
· Rated power (kW): 1
· Rotor diameter (in feet): 8.2
· Swept area (in square feet): 53*
· Cut-in wind speed (mph): 5.6
· Rated wind speed (mph): 24.6
· kWh/month at average wind speeds: 55 (8 mph);
115 (10 mph); 195 (12 mph)
· Peak output (watts): 1,300
· RPM at rated output: 450*
· Blade material: Pultruded fiberglass**
· Tip speed ratio: 5.8**
· Cost (U.S. dollars): $2,790
· Years in production: 6
· Warranty (years): 5
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
** Source: Apples & Oranges, Home Power magazine, September 2002.
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Bergey Excel-S
· Rated power (kW): 10
· Rotor diameter (in feet): 23
· Swept area (in square feet): 415*
· Cut-in wind speed (mph): 8
· Rated wind speed (mph): 30
· kWh/month at average wind speeds: 240 (8 mph);
900 (12 mph); 1,370 (14 mph)
· Peak output (watts): 12,000 (at 36 mph)
· RPM at rated output: 300*
· Blade material: Pultruded fiberglass
· Tip speed ratio: 7.5**
· Cost (U.S. dollars): $29,500 (including inverter)
· Years in production: 24
· Warranty (years): 5
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
** Source: Apples & Oranges, Home Power magazine, September 2002.
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Eoltec Wind Turbines
http://www.pineridgeproducts.com/PRPSite/Welcome.html; http://www.pvsquared.coop/; http://www.eoltec.com/
Commercial availability: The Eoltec 6 kW is imported from France and sold in the United States by Pine Ridge Products LLC, Belt, Montana; and PV Squared, Greenfield, Massachusetts.
Sales figures: n/a
State with commercial installations: Montana, Massachusetts, New York.
Examples of actual installations (in addition to case studies): n/a
Technical specifications:
Eoltec 6 kW
· Rated power (kW): 6
· Rotor diameter (in feet): 18.4
· Swept area (in square feet): 265
· Cut-in wind speed (mph): 6
· Rated wind speed (mph): n/a
· kWh/month at average wind speeds: 294 (8 mph); 558 (10 mph); 892 (12 mph)*
· Peak output (watts): 6,000
· RPM at rated output: 245*
· Blade material: Hollow glass fiber with aluminum spar
· Tip speed ratio: n/a
· Cost (U.S. dollars): Contact importers listed above for current price
· Years in production: 6
· Warranty (years): 5
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
Kestrel Wind Turbines
http://www.dcpower-systems.com; http://www.kestrelwind.co.za/content.asp?PageID=177
Commercial availability: Kestrel wind turbines are imported from South Africa and sold in the United States by DC Power Systems, Healdsburg, California.
Sales figures: n/a
State with commercial installations: Alaska.
Examples of actual installations (in addition to case studies): n/a
Technical specifications:
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Kestrel e220
· Rated power (kW): 0.8
· Rotor diameter (in feet): 7.2
· Swept area (in square feet): 38.5*
· Cut-in wind speed (mph): 6.71
· Rated wind speed (mph): 26.8
· kWh/month at average wind speeds: 58 (8 mph); 104 (10 mph); 1,585 (12 mph)
· Peak output (watts): 850
· RPM at rated output: 1,000
· Blade material: Molded fiberglass
· Tip speed ratio: n/a
· Cost (U.S. dollars): Contact importer listed above for current price
· Years in production: n/a
· Warranty (years): 2
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
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Kestrel e300i
· Rated power (kW): 1
· Rotor diameter (in feet): 9.8
· Swept area (in square feet): 79*
· Cut-in wind speed (mph): 6.71
· Rated wind speed (mph): 21
· kWh/month at average wind speeds: 91 (8 mph); 150 (10 mph); 250 (12 mph)
· Peak output (watts): 1,200
· RPM at rated output: 650
· Blade material: Molded fiberglass
· Tip speed ratio: n/a
· Cost (U.S. dollars): Contact importer listed above for current price
· Years in production: 6 months
· Warranty (years): 2
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
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Kestrel e380i
· Rated power (kW): 3
· Rotor diameter (in feet): 12.2
· Swept area (in square feet): 120*
· Cut-in wind speed (mph): 8.5
· Rated wind speed (mph): 28.0
· kWh/month at average wind speeds: 1,644 (10 mph); 2,691 (12 mph); 3,872 (14 mph)
· Peak output (watts): 3,200
· RPM at rated output: 500
· Blade material: Molded fiberglass
· Tip speed ratio: 120**
· Cost (U.S. dollars): Contact importer listed above for current price
· Years in production: 1
· Warranty (years): 2
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
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Proven Energy
http://www.solarwindworks.com/Products/Wind_Turbines/_/_.htm; http://www.windandsun.com/; http://www.remotepowerinc.com; http://www.provenamerica.com/windturbines_publicsectors.html;
http://www.provenenergy.co.uk
Commercial availability: Proven wind turbines are imported from the United Kingdom and distributed in the United States by Solar Wind Works, Truckee, California; Lake Michigan Wind & Sun, Sturgeon Bay, Wisconsin; and Remote Power Inc., Fairbanks, Alaska.
Sales figures (for Solar Wind Works): $146,000 (2006); $10,080 (2005); $37,530 (2004)
State with commercial installations: California, Nevada, Colorado, Washington, New Mexico, Arkansas, Minnesota, and Idaho.
Examples of actual installations (in addition to case studies): Mountain Home, Idaho; Truckee, California; Santa Fe, New Mexico; Reno, Nevada.
Technical specifications:
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Proven 0.6
· Rated power (kW): 0.6
· Rotor diameter (in feet): 8.4*
· Swept area (in square feet): 55*
· Cut-in wind speed (mph): 6
· Rated wind speed (mph): 22.5
· kWh/month at average wind speeds: 42 (8 mph);
83 (10 mph); 124 (12 mph)*
· Peak output (watts): 700**
· RPM at rated output: 500
· Blade material: Polypropylene
· Tip speed ratio: 6.7**
· Cost (U.S. dollars): Contact importers listed above for current price
· Years in production: 10
· Warranty (years): 2, extended warranty available
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
** Source: Apples & Oranges, Home Power magazine, September 2002.
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Proven 2.5
· Rated power (kW): 2.5
· Rotor diameter (in feet): 9
· Swept area (in square feet): 97*
· Cut-in wind speed (mph): 6
· Rated wind speed (mph): 26.8
· kWh/month at average wind speeds: 167 (8 mph);
293 (10 mph); 417 (12 mph)*
· Peak output (watts): 2,900
· RPM at rated output: 300
· Blade material: Polypropylene
· Tip speed ratio: 4.6**
· Cost (U.S. dollars): Contact importers listed above for current price
· Years in production: 14
· Warranty (years): 2, extended warranty available
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
** Source: Apples & Oranges, Home Power magazine, September 2002.
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Proven 6
· Rated power (kW): 6
· Rotor diameter (in feet): 18*
· Swept area (in square feet): 254*
· Cut-in wind speed (mph): 6
· Rated wind speed (mph): 26
· kWh/month at average wind speeds: 417 (8 mph);
667 (10 mph); 1,083 (12 mph)*
· Peak output (watts): 6,500**
· RPM at rated output: 200
· Blade material: Wood epoxy composite
· Tip speed ratio: 5.8**
· Cost (U.S. dollars): Contact importers listed above for current price
· Years in production: 9
· Warranty (years): 2, extended warranty available
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
** Source: Apples & Oranges, Home Power magazine, September 2002.
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Proven 15
· Rated power (kW): 15
· Rotor diameter (in feet): 29.5
· Swept area (in square feet): 254*
· Cut-in wind speed (mph): 5.6
· Rated wind speed (mph): 26.8
· kWh/month at average wind speeds: 777 (8 mph);
1,451 (10 mph); 3,080 (12 mph)*
· Peak output (watts): n/a
· RPM at rated output: 150*
· Blade material: Glass epoxy composite
· Tip speed ratio: n/a
· Cost (U.S. dollars): Contact importers listed above for current price
· Years in production: 2
· Warranty (years): 2, extended warranty available
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
** Source: Apples & Oranges, Home Power magazine, September 2002.
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Southwest Windpower
http://www.windenergy.com/products/products.htm
Commercial availability: Southwest Windpower wind turbines are available through dealers in all 50 states.
Sales figures: n/a
State with commercial installations: Skystream 3.7 turbines are installed in all 50 states; among the states with the most installations are Pennsylvania (22), Texas (12), Michigan (12), and Arizona (11).
Examples of actual installations (in addition to case studies): n/a
Technical specifications:
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Whisper 100
· Rated power (kW): 0.9
· Rotor diameter (in feet): 7
· Swept area (in square feet): 38.5*
· Cut-in wind speed (mph): 7.5**
· Rated wind speed (mph): 28**
· kWh/month at average wind speeds: 30 (8 mph);
60 (10 mph); 100 (12 mph); 150 (14 mph)
· Peak output (watts): 900
· RPM at rated output: 1,200*
· Blade material: 3 Polypro/carbon glass reinforced
· Tip speed ratio: 10.3**
· Cost (U.S. dollars): $2,475, with controller*
· Years in production: 11
· Warranty (years): 5
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
** Source: Apples & Oranges, Home Power magazine, September 2002.
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Whisper 200
· Rated power (kW): 1
· Rotor diameter (in feet): 9
· Swept area (in square feet): 78.5**
· Cut-in wind speed (mph): 7**
· Rated wind speed (mph): 26**
· kWh/month at average wind speeds: 70 (8 mph);
125 (10 mph); 158 (12 mph); 260 (14 mph)
· Peak output (watts): 1,000
· RPM at rated output: 1,100*
· Blade material: 3 Polypro/carbon glass reinforced
· Tip speed ratio: 13.4**
· Cost (U.S. dollars): $2,995, with controller*
· Years in production: 11
· Warranty (years): 5
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
** Source: Apples & Oranges, Home Power magazine, September 2002.
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Skystream 3.7
· Rated power (kW): 1.9
· Rotor diameter (in feet): 12
· Swept area (in square feet): 115.7
· Cut-in wind speed (mph): 8
· Rated wind speed (mph): 21
· kWh/month at average wind speeds: 100 (8 mph);
240 (10 mph); 400 (12 mph); 500 (14 mph)
· Peak output (watts): 2,600
· RPM at rated output: 325
· Blade material: Compression molded fiberglass
· Tip speed ratio: n/a
· Cost (U.S. dollars): $5,400*
· Years in production: 1
· Warranty (years): 5
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
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Whisper 500
· Rated power (kW): 3
· Rotor diameter (in feet): 15
· Swept area (in square feet): 176*
· Cut-in wind speed (mph): 7**
· Rated wind speed (mph): 24**
· kWh/month at average wind speeds: 170 (8 mph);
330 (10 mph); 538 (12 mph)*
· Peak output (watts): 3,200
· RPM at rated output: 800*
· Blade material: 2-Carbon reinforced fiberglass
· Tip speed ratio: 10**
· Cost (U.S. dollars): $7,675, including turbine-integrated batteryless inverter*
· Years in production: 11
· Warranty (years): 5
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
** Source: Apples & Oranges, Home Power magazine, September 2002.
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Wind Turbine Industries
http://www.windturbine.net
Commercial availability: Jacobs turbines are available through dealers in 23 states.
Sales figures: n/a
State with commercial installations: Several states, including California, Minnesota, Iowa, Wisconsin, New York, and Pennsylvania.
Examples of actual installations (in addition to case studies): n/a
Technical specifications:
Jacobs 31-20
· Rated power (kW): 20
· Rotor diameter (in feet): 31
· Swept area (in square feet): 660
· Cut-in wind speed (mph): 8
· Rated wind speed (mph): 26
· kWh/month at average wind speeds: 1,644 (10 mph); 2,691 (12 mph); 3,872 (14 mph)
· Peak output (watts): 20,000
· RPM at rated output: 175*
· Blade material: Fiberglass over foam*
· Tip speed ratio: 120**
· Cost (U.S. dollars): $33,500
· Years in production: 27 (since Wind Turbine Industries Corporation acquired Jacobs energy turbine products)
· Warranty (years): 1, five-year warranty available at additional cost
*Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
** Source: Apples & Oranges, Home Power magazine, September 2002.
Note: De-rated Jacobs 31-20 model available at 10 kW, 12.5 kW, 15 kW, and 17.5 kW.
Vendors of Remanufactured Turbines
Halus Power Systems
http://www.halus.com
Commercial availability: The remanufactured Vestas V-17 wind turbine is available through Halus Power Systems, Hayward, California.
Sales figures: n/a
State with commercial installations: California, Oregon, Alaska, New York, Wisconsin, Iowa, Montana, Illinois, Washington, Kansas.
Examples of actual installations (below 100 kW): Neosho, Wisconsin; Nikolski, Alaska; Milwaukee, Wisconsin;
Technical specifications:
Vestas V-17
· Rated power (kW): 90
· Rotor diameter (in feet): 50
· Swept area (in square feet): 2,462*
· Cut-in wind speed (mph): 7
· Rated wind speed (mph): 40
· kWh/month at average wind speeds: 5,060 (10 mph); 8,198 (12 mph)*
· Peak output (watts): 90,000
· RPM at rated output: 40
· Blade material: Fiberglass
· Tip speed ratio: n/a
· Cost (U.S. dollars): $80,000–110,000 depending on tower type
· Years in production: 3
· Warranty (years): 1, extended warranty available
* Source: Wind Turbine Buyer’s Guide, Home Power magazine, June/July 2007.
Note: Halus previous remanufactured the Vestas V-15, with a rated output of 65 kW, but the company does not expect
to obtain any more V-15s.
Next Generation Power Systems
http://www.nexgenpowersystems.com/nextgeneration.php
Commercial availability: The remanufactured NG Twelve-Five wind turbine is available through Next Generation Power Systems, Pipestone, Minnesota.
Sales figures: n/a
State with commercial installations: Minnesota, North Dakota, South Dakota, and Iowa.
Examples of actual installations: n/a
Technical specifications:
NG Twelve-Five
· Rated power (kW): 39.5 kW
· Rotor diameter (in feet): 41
· Swept area (in square feet): 1,324
· Cut-in wind speed (mph): 8.2
· Rated wind speed (mph): 30
· kWh/month at average wind speeds:1,250 (8.9 mph), 3,333 (11 mph), 5,416 (13.4 mph)
· Peak output (watts): n/a
· RPM at rated output: 100
· Blade material: Fiberglass
· Tip speed ratio: 9
· Cost (U.S. dollars): $1,500/W
· Years in production: 3
· Warranty (years): 1
Note: The NG Twelve-Five is a remanufactured German wind turbine.