Tensionless Pier Wind Turbine Foundation

Tensionless Pier Wind Turbine Foundation

The P&H Tensionless Pier is a patented, proprietary foundation to support wind turbines on monopole towers. The foundation consists of a large diameter, cast-in-place annular pier (typically 14 to 16-feet in diameter and 25 to 35-feet deep).

Corrugated metal pipes (CMP) provide a stay in place form for the interior and exterior of the concrete annular pier. The hollow interior of the P&H pier is normally backfilled with a three-foot thick concrete plug at the base, followed by uncompacted soils (comprised of spoil from the foundation excavation process), and a 12-inch thick structural slab across the top of the annular. The embedded depth of the P&H pier varies depending on the applied loading from the wind turbine and subsurface conditions at the site. The anchor bolts of the wind turbine tower are post-tensioned to ensure that the concrete that comprises the pier remains in compression, even when subjected to extreme wind loading.

The P&H pier differs from a conventional gravity spread foundation often used for support of wind turbines in the way the foundation loads are transferred to and resisted by the supporting soil materials. In a conventional spread footing, the vertical loads and overturning moments applied at the top of the foundation are resisted by the weight of the spread footing and bearing on the base of the foundation, and the horizontal loads are resisted by friction at the base of the spread footing. However, the P&H pier resists the applied horizontal loads and overturning moment mainly by horizontal resistance of the soil that surrounds the annular pier and to a much lesser extent by bearing on the base of the pier.

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Engineering Drawing:

 

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TENSIONLESS PIER FOUNDATION

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Advantages of the Tensionless Pier Wind Turbine Foundation

  • Turbine sizes: 100 KW to 3 MW installed, with capacity for larger. Supports the largest turbines to date both in North America and internationally.
  • Most efficent, cost effective foundation solution – more than 6,000 installations
    • Typical and historical foundation savings in excess of 25% as compared to shallow foundations in various soil conditions
    • Most efficient utilization of time and resources
    • 3-6% reduction in total project development costs
  • Well suited for varying soil conditions See the Turbine Foundation Material Comparison Chart.
  • Deep foundations are superior for seismically active zones, floodwater inundation, flood scour, frost depth, creeps and landslides
  • Extended fatigue life characteristics due to post tensioning

Tensionless Pier Turbine Foundation Flier

Wind Energy Projects Built with P&H Foundations

No. Year Built Project Location State/Prov Turbine Type Tower Height (m) No. of Turbines Turbine Size (MW)
1 1994 Dutch Pacific Palm Springs, CA CA NedWind 40 20 0.50
2 1995 Alta Mesa Palm Springs, CA CA Vestas 250 kW 46 45 0.25
3 1996 East Winds Palm Springs, CA CA Micon 600 kW 45 7 0.60
4 1996 Ascension Island Ascension Island   Micon 250 kW 35 4 0.25
5 1997 Pincher Creek Calgary, Alberta AB Vestas V-47 660kW 50 2 0.66
6 1997 Cameron Ridge (Repower) Tehachapi, CA CA NEG-Micon 55 80 0.75
7 1997 Big Springs Big Spring, TX TX Vestas V-47 660kW 65 42 0.66
7 1997 Big Springs Big Spring, TX TX Vestas 1.65 MW 80 8 1.65
8 1997   Palm Springs, CA CA Vestas 250 kW 46 3 0.25
9 1997 Foote Creek Foote Creek, WY WY Mitsubishi 600 kW 40 72 0.60
10 1998 Platte River Medicine Bow, WY WY Vestas V-47 660kW 50 2 0.66
11 1998 Vanscycle Vansycle, OR OR Vestas V-47 660kW 50 38 0.66
12 1998 Pincher Creek Calgary, Alberta AB Vestas V-47 660kW 50 2 0.66
13 1998 Cerro Gordo Cerro Gordo, IA IA Micon 750 kW 55 55 0.75
14 1998 Lakota Lakota, MN MN Vestas V-47 660kW 65 15 0.66
15 1998 Lincoln Lincoln, NE NE Vestas V-47 660kW 65 1 0.66
16 1998 Chandler Hills Chandler, MN MN NEG-Micon 65 3 0.66
17 1998 Rosiere Green Bay, WI WI Vestas V-47 660kW 65 17 0.66
18 1998 Lincoln Green Bay, WI WI Vestas V-47 660kW 65 14 0.66
19 1999 Pacific Crest Tehachapi, CA CA Vestas V-47 660kW 55 69 0.66
20 1999   Tehachapi, CA CA Mitsubishi 600 kW 45 58 0.60
21 1999 Delaware Mountain Van Horn, TX TX Zond 750 kW 50 40 0.75
22 1999 Foote Creek III Foote Creek, WY WY NEG-Micon 50 33 0.75
23 1999 Green Power Palm Springs, CA CA Zond 750 kW 65 31 0.75
24 1999 Victory Gardens (Repower) Tehachapi, CA CA Zond 750 kW 65 9 0.75
25 1999 Rock Flat Rock Flat, CO CO WTC 300 kW 35 1 0.30
26 1999 Lincoln Lincoln, NE NE Vestas V-47 660kW 65 1 0.66
27 2000 Pincher Creek Calgary, Alberta AB Vestas V-47 660kW 50 2 0.66
28 2000 Platte River Medicine Bow, WY WY Vestas V-47 660kW 50 5 0.66
29 2000 Whitewater (WECS 25) Riverside County, CA CA Nordex N54, 1000kW 62 6 1.00
30 2000 Green Mountain Somerset County, PA PA Nordex N60 1300kW 50 8 0.66
31 2000 Foote Creek IV Arlington, WY WY Vestas V-47 660kW 50 28 0.66
32 2000 Wetherfield Wyoming Co, NY NY Vestas V-47 660kW 67 10 0.66
33 2000 Buffalo Mountain Oliver Springs, TN TN Vestas V-47 660kW 52 3 0.60
34 2000 Woodward Ranch McCamey, TX TX Vestas V-47 660kW 52 242 0.66
35 2000 Seawest Mountain View I & II Riverside County, CA CA Mitsubishi MWT-600kW 50/60 74 0.60
36 2000 Foote Creek Arlington, WY WY Mitsubishi MWT-600kW 50 28 0.60
37 2000 Indian Mesa I & II McCamey, TX TX Enron Z70.5, 1.5MW 65 107 1.50
38 2000 Castle River Spgs-Pincher Creek Pincher Creek, Alberta AB Vestas V-47 660kW 50 14 0.66
39 2001 Monfort Dodgeville, WI WI Enron Z70.5, 1.5MW 65 20 1.50
40 2001 Trent Mesa Sweetwater, Texas TX Enron Z70.5, 1.5MW 65 100 1.50
41 2001 Castle River Spgs-Pincher Creek Pincher Creek, Alberta AB Vestas V-47 660kW 50 17 0.66
42 2001 Ponnequin Weld Co., CO CO Vestas V-47 660kW 65 15 0.66
43 2001 Peetz Table Peetz, CO CO NEG-Micon 900kW NM 44 70.5 33 0.90
44 2001 Rock River I Arlington, WY WY Mitsubishi MH1 1MW 60 50 1.00
45 2001 Sunbridge Gull Lake, Saskatchewan SK Vestas V-47 660kW 65 6 0.66
46 2001 Stateline Walla/Umatilla Co., WA/OR WA/OR Vestas V-47 660kW 50 399 0.66
47 2001 King Mountain McCamey, TX TX Bonus 1,300KW 62 214 1.30
48 2001 Gray County Montezuma, KS KS Vestas V-47 660kW 65 170 0.66
49 2001 Klondike Wasco, OR OR Enron Z70.5, 1.5MW 65 16 1.50
50 2001 Chamberlain (Prairie Winds) South Dakota SD Nordex N60 1300kW 60 2 1.30
51 2001 Condon Condon, OR OR Mitsubishi MWT-600kW 60 83 0.60
52 2001 Castle River Spgs-Pincher Creek Pincher Creek, Alberta AB Vestas V-47 660kW 50 33 0.66
53 2001 Spirit Lake Spirit Lake, IA IA NEG-Micon 750 kW 54 1 0.75
54 2001 Waverly Waverly, IA IA NEG-Micon 900kW NM 44   1 0.90
55 2002 Oak Creek Tehachapi, CA CA NEG-Micon 1.5 MW   1 1.50
56 2002 Kimball Kimball, NE NE NEG-Micon 1.5MW 68 7 1.50
57 2002 Nine Canyons I Benton County, WA WA Bonus 1,300KW 60 37 1.30
58 2002 Cabazon Riverside County, CA CA Vestas V-47 660kW 65 62 0.66
59 2002 Whitewater Hill (WECS 3) Riverside County, CA CA Enron Z70.5, 1.5MW 65 41 1.50
60 2002 Eldora Eldora, IA IA NEG-Micon 750 kW 54 1 0.75
61 2002 Worthington Worthington, MN MN NEG-Micon 950kW 70.5 4 0.95
62 2002 Sunbridge Gull Lake, Saskatchewan SK Vestas V-47 660kW 65 17 0.66
63 2002 Stateline Walla/Umatilla Co., WA/OR WA/OR Vestas V-47 660kW 50 55 0.66
64 2002 Prairie Winds Ward County, Minot, ND ND Nordex N60 1300kW 60 2 1.30
65 2002 Arbutus Tehachapi, Kern Co., CA CA Vestas V-47 660kW 50 13 0.66
66 2002 SMUD I, Rio Vista Solano County, CA CA Vestas V-47 660kW 50 15 0.66
67 2002 McBride Lake-Fort Macleod Pincher Creek, Alberta AB Vestas V-47 660kW 50 114 0.66
68 2002 Fairmont Fairmont, MN MN NEG-Micon 950 kW   2 0.95
69 2003 Valentine Valentine, NE NE NEG-Micon 750 kW   1 0.75
70 2003 Pipestone Pipestone, MN MN Suzlon 1.25 MW 63 12 1.25
71 2003 High Winds I Rio Vista, Solano Co., CA CA Vestas V-80 1.8 MW 60 81 1.80
72 2003 Taiban Mesa Taiban, NM NM GE Wind 1.5 MW 65 136 1.50
73 2003 Highmore Highmore, SD SD GE Wind 1.5 MW 65 27 1.50
74 2003 Edgeley Kulm Edgley-Kulm, ND ND GE Wind 1.5 MW 65 41 1.50
75 2003 Waymart Waymart, PA PA GE Wind 1.5 MW 65 43 1.50
76 2003 Evanston Evanston, WY WY Vestas V-80 1.8 MW 65 80 1.80
77 2003 Nine Canyons II Benton County, WA WA Bonus 1,300KW 60 12 1.30
78 2003 Bowling Green Bowling Green, OH OH Vestas V-80 1.8 MW 80 2 1.80
79 2003 Cypress Wind Power Gull Lake, Saskatchewan SK Vestas V-47 660kW 50 7 0.66
80 2003 Mountain View III Palm Springs, CA CA Vestas V-47 660kW 60 34 0.60
81 2003 Meyersdale Meyersdale, PA PA NEG-Micon 1.5 MW 80 20 1.50
82 2003 Combine Hills I Umatilla Co., OR OR Mitsubishi MH1 1MW 55 41 1.00
83 2003 High Winds II Rio Vista, Solano Co., CA CA Vestas V-80 1.8 MW 60 10 1.80
84 2004 Llano Estacado Wind Ranch Clovis, NM NM Vestas V-47 660kW 65 2 0.66
85 2004 Wall Lake Wall Lake, IA IA Vestas V-47 660kW 65 1 0.66
86 2004 King Mountain McCamey, TX TX Vestas V-90 3.0 MW 66 1 3.00
87 2004 SMUD Ia, Rio Vista Solano County, CA CA Vestas V-47 660kW 50 7 0.66
88 2004 Prowers County Lamar & Springfield, CO CO GE Wind 1.5 MW 80 5 1.50
89 2004 Wigton Jamaica Wigton, Jamaica   NEG-Micon 950kW 50 27 0.95
90 2004 Pincher Creek Pincher Creek, Alberta AB Vestas V-90 3.0 MW 66 1 3.00
91 2004 Summerview Summerview, Alberta AB Vestas V-80 1.8 MW 67 38 1.80
92 2004 Altamont Repower Altamont, CA CA Vestas V-47 660kW 55 31 0.66
93 2004 Oasis Mojave, CA CA Mitsubishi MH1 1MW 60 60 1.00
94 2004 Stateline (replacements) Walla/Umatilla Co., WA/OR WA/OR Vestas V-47 660kW 50 25 0.66
95 2004 Buffalo Ridge Anderson County, TN TN Vestas V-80 1.8 MW 80 15 1.50
96 2004 Bowling Green Bowling Green, OH OH Vestas V-80 1.8 MW 80 2 1.80
97 2004 Pubnico Point I West Pubnico, Nova Scotia NS Vestas V-80 1.8 MW 78 2 1.80
98 2004 Guantanamo Bay US Naval Base Guantanamo Bay, Cuba   NEG-Micon 950 kW 55 4 0.95
99 2005 West Pipestone Wind Turbines Pipestone, MN MN NEG-Micon 1.65 MW 70 7 1.65
100 2005 Cresent Ridge Tiskilwa, IL IL NEG-Micon 1.65MW 78 33 1.65
101 2005 Weatherford Weatherford, OK OK GE Wind 1.5 MW 80 71 1.50
102 2004 Oak Creek Energy Palmdale WTP, CA CA NEG-Micon 950 kW 70 1 0.95
103 2004 Fossil Gulch Hagerman, ID ID GE Wind 1.5 MW 80 6 1.50
104 2005 Camp Williams Camp Williams, UT UT Vestas V-47 660kW 50 1 0.66
105 2004 Karen Avenue Riverside County, CA CA GE Wind 1.5 MW 65 3 1.50
106 2005 Pubnico Point II West Pubnico, Nova Scotia NS Vestas V-80 1.8 MW 78 15 1.80
107 2005 Bison Wind Power Project St. Leon, Manitoba MB NEG-Micon 72C 1650kW 80 63 1.65
108 2005 Buffalo Gap Buffalo Gap, TX TX Vestas V-80 1.8 MW 80 67 1.80
109 2005 Rush Creek Swift Current, Saskatchewan SK Vestas V-80 1.8 MW 67 26 1.80
110 2005 Kingsbridge Kingsbridge,Ontario ON Vestas V-80 1.8 MW 78 16 1.80
111 2005 Hopkins Ridge Dayton, WA WA Vestas V-80 1.8 MW 67 83 1.80
112 2005 Warren AFB Warren AFB, WY WY Vestas V-47 660kW 50 2 0.66
113 2005 JD 1,2,&3 Hansford Co, Gruver, TX TX Suzlon S64 1.25 MW 74.5 24 1.25
114 2005 Weatherford II Weatherford, OK OK GE 1.5MW 80 27 1.50
115 2006 Portsmouth Abbey Portsmouth, RI RI Vestas 660KW 50 1 0.66
116 2006 Hull 2 Hull, MA MA Vestas V-80 1.8 MW 80 1 1.80
117 2006 Horse Hollow II Abilene, TX TX Siemens 2.3MW 80 128 2.30
118 2006 Wildhorse Kittitas Co., Vantage,WA WA Vestas V-80 1.8 MW 67 127 1.80
119 2006 Horseshoe Bend Great Falls, MT MT GE 1.5 MW 80 6 1.50
120 2006 SMUD II Solano Co., Rio Vista, CA CA Vestas V-90 3.0 MW 80 8 3.00
121 2006 Burleigh County Burleigh Co.,Wilton, ND ND GE 1.5MW 80 33 1.50
122 2006 Chandler Chandler, MN MN Suzlon 1.25MW 63 8 1.25
123 2006 Soderglen Fort MacLeod, Alberta AB GE 1.5MW 65 47 1.50
124 2006 Holland Holland, MN MN Neg-Micon 1.65MW 70 8 1.65
125 2006 Stuart Stuart, IA IA Vestas V-47 660kW 65 1 0.66
126 2006 JD4 Bernstein, TX TX Suzlon S-88 2.1MW 80 38 2.10
127 2006 JD 5 & 6 Bernstein, TX TX Suzlon S64 1.25 MW 74.5 16 1.25
128 2006 Coram Energy Kern Co., CA CA GE Wind 1.5 MW 65 4 1.50
129 2006 Blue Grass Ridge Gentry Co., MO MO Suzlon S88 2.1MW 78 24 2.10
130 2006 Forest Creek Big Spring, TX TX Siemens 2.3MW 80 54 2.30
131 2006 Sand Bluff Big Spring, TX TX Gamesa G87 2.0MW 78 45 2.00
132 2006 Locust Ridge Mahonoy City, PA PA Gamesa G87 2.0MW 78 13 2.00
133 2006 Buena Vista II Contra Costa Co., CA CA MHI 1MW 45/50/55 38 1.00
134 2006 Mars Hill Mars Hill, ME ME GE 1.5MW 80 28 1.50
135 2007 Synder Synder, TX TX Vestas V-90 3MW 105 21 3.00
136 2007 Marengo I &II Marengo, WA WA Vestas V-80 1.8 MW 67 117 1.80
137 2007 SMUD 2B Solano Co., Rio Vista, CA CA Vestas V-90 3.0 MW 80 21 3.00
138 2007 Oak Creek CPC 1A Kern Co., CA CA Vestas V-90 3.0 MW 80 8 3.00
139 2007 JD 7,8,9,10,11 Texahoma, TX TX Suzlon S-64 1.25MW 74.5 40 1.25
140 2007 Baker Baker, MT MT GE 1.5MW 80 13 1.50
141 2008 Sherrard School Rock Island, IL IL Vestas V47 660 kW 55 1 0.67
142 2008 Mountain Home Mountain Home, ID ID Suzlon S-88-2.1 MW 79.2 20 2.10
143 2008 Welcome Welcome, MN MN Suzlon S-88-2.1 MW 79.2 1 2.10
144 2008 Brewster Brewster, MN MN Suzlon S-88-2.1 MW 79.2 1 2.10
145 2008 Garnet Wind Palm Springs, CA CA NedWind 40 500kW 38 13 0.50
146 2008 Wray Wray, CO CO Directwind 54 900kW 38 1 0.50
147 2008 Sweetwater Roscoe, TX TX DeWind 2.0 MW 80 1 2.00
148 2008 Cassia Hagerman, ID ID Suzlon S-88 2.1MW 80 14 2.10
149 2008 Stetson Mountain Danforth, ME ME GE 1.5MW 80 38 1.50
150 2008 Kent Hills Kent Hills, NB NB Vestas V-90 3.0 MW 80 32 3.00
151 2008 Locust Ridge II Mahonoy City, PA PA Gamesa G87 2.0MW 78 53 2.00
152 2008 Pine Tree Wind Mojave, CA CA GE Wind 1.5 MW 65 80 1.50
153 2008 Lempster Wind Farm Lempster, NH NH Gamesa G87 2.0MW 78 14 2.00
154 2008 Sherrad School Sherrard, IL IL RRB PS 600 50 1 0.60
155 2008 Auburn Auburn, IL IL Direct Wind 900 KW 75 1 0.90
156 2008 McEvoy Ranch   CA Norwin 29 225 KW 30 1 0.23
157 2008 3 Mile Canyon   WA Vestas V82 1.65 MW 80 6 1.65
158 2008 Windy Point, Phase1 Goldendale, WA WA Repower 2 MW 80 30 2.00
159 2008 Windy Point, Phase1 Goldendale, WA WA Siemens 2.3M 80 33 2.30
160 2008 Windy Flats Goldendale, WA WA Siemens 2.3M 80 52 2.30
161 2008 Echo Wind Umatilla & Morrow Co., OR OR Vestas V-82 1.65 MW/ 80 27 1.65
162 2008 Echo Wind Umatilla & Morrow Co., OR OR Repower 2 MW 80 10 2.00
163 2008 Portsmouth Portsmouth, RI RI AAER 1500-77 1.5 MW 65 1 1.50
164 2008 Tin City Tin City, AK AK Vestas V27 225 kW 31 1 0.23
165 2008 Mark Richey Woodworking Newburyport, MA MA Vestas RRB 600 kW 65 1 0.60
166 2008 Marine Corps Logistic Center Turbine Barstow, CA CA Furlander F1500 1.5MW 80 1 1.50
167 2009 Blue Trail Fort Macleod, Alberta AL Vestas V-90 3.0 MW 80 22 3.00
168 2009 Summerview II Pincher Creek, Alberta AL Vestas V-90 3.0 MW 80 23 3.00
169 2009 Damao Inner Mongolia, China CHN Goldwind 750 kW 60 2 0.75
170 2009 Porta High School Petersburg, IL IL Vestas RRB 600 kW 50 1 0.60
171 2009 Kibby Wind Power Franklin County, ME ME Vestas V-90 3.0 MW 80 44 3.00
172 2009 Williams Stone Co. East Otis, MA MA Vestas RRB 600 kW 65 1 0.60
173 2009 Windy Flats Goldendale, WA WA Siemens 2.3M 80 52 2.30
174 2009 Windy Flats, Hoctor-Davenport Goldendale, WA WA Siemens 2.3M 80 3 2.30
175 2009 Wildhorse II Kittitas Co., Vantage,WA WA Vestas V-80 2.0 MW 80 22 2.00
176 2009 Windland Repower II Tehachapi, CA CA AAER 1500-77 1.5 MW 70 2 1.5
177 2009 New England Tech Warwick, RI RI Northwind 100 37 1 0.1
178 2010 308 Arnold Street Wrentham, MA MA Northwind 100 37 1 0.1
179 2010 Mountain View Whitefield, NH NH Northwind 100 37 1 0.1
180 2009 Stony Creek Somerset, PA PA GE Wind 1.5 MW 80 25 1.50
181 2009 Fox Island Vinalhaven, ME ME GE 1.5MW 80 3 1.5
182 2009 Scioto School MacGuffey, OH OH Northwind 100 37 1 0.1
183 2009 Stetson II Danforth, ME ME GE 1.5MW 80 17 1.5
184 2009 Berkshire Hancock, MA MA GE 1.5MW 80 10 1.5
185 2009 Pine Tree -additional (10) Mojave, CA CA GE Wind 1.5 MW 80 10 1.5
186 2009 Linden Goodnoe, WA WA Repower 2MW 80 25 2.0
187 2009 Federal Correctional Institution Big Springs, TX TX Northwind 100 30 1 0.1
188 2009 Half Hollows Nursery Laurel, Long Island, NY NY Northwind 100 37 1 0.1
189 2009 Heritage Flight South Burlington, VT VT Northwind 100 37 1 0.1
190 2009 Grange Wind Woodstock, MN MN Directwind (EWT) 900 75 1 0.9
191 2010 Coastal Wind Gray Harbor,WA WA GE 1.5MW 80 4 1.5
192 2010 Sandusky WWTP Sandusky, OH OH Turbowinds T600 65 1 0.6
193 2010 Conneaut School & WWTP Conneaut, OH OH Turbowinds T600/T400 65 2 0.5
194 2010 Sheffield Lake Sheffield Lake, OH OH Northwind 100 37 1 0.1
195 2010 Ada High School Ada, OH OH Turbowinds T400 50 1 0.4
196 2010 Ohio Northern University Ada, OH OH Turbowinds T400 50 3 0.4
197 2010 Ontario High School Ontario, OH OH Northwind 100 37 2 0.1
198 2010 Teichert Aggregate Quarry Vernalis, CA CA GE 1.5MW 80 1 1.5
199 2010 Vestas Manfacturing Facility Pueblo County, CO CO Vestas V100 80 1 1.8
200 2010 Tooele Army Depot Tooele, UT UT CPC 1.5MW 78 1 1.5
201 2010 Alta Wind Energy, I Kern County, CA CA GE 1.5MW 65 100 1.5
202 2010 Ardenville Ardenville, Alberta AL Vestas V-90 3 MW 80 23 3.0
203 2010 Phoenix Press New Haven, CT CT Northwind 100 37 1 0.1
204 2010 Bolton Valley Bolton Valley, VT VT Northwind 100 37 1 0.1
205 2010 SE Saline School Saline, KS KS Northwind 100 37 1 0.1
206 2010 Cascade WWTP Cascade, WI WI Northwind 100 37 1 0.1
207 2010 Cloud Co, Comm. College Concordia, KS KS Northwind 100 30 1 0.1
208 2010 Evansville WWTF Evansville, WI WI Northwind 100 37 1 0.1
209 2010 Hanover Hanover, MA MA GWP 225 kW 48.5 1 0.2
210 2010 Kent Hills II Kent Hills, NB NB Vestas V-90 3 MW 80 18 3.0
211 2010 Green Power North Palm Springs, CA CA RRB 600 kW 65 1 0.6
212 2010 Falmouth Falmouth MA Vestas V82 80 1 1.7
213 2010 St Cloud St Cloud, MN MN Elecon T 600 65 1 0.6
214 2010 Barnstable Hyannis Barnstable, MA MA Northwind 100 30 2 0.1
215 2010 MWRA Delauri Pump Station Charlestown, MA MA SL 1500 70 1 1.5
216 2010 Bellevue High School Belleview, OH OH Northwind 100 37 1 0.1
217 2010 Scheff Garden Sandusky, OH OH Northwind 100 37 1 0.1
218 2010 Jackman, Maine Jackman, ME ME Northwind 100 37 2 0.1
219 2010 Red Lily Red Lily, SK SK Vestas V82 80 5 1.7
220 2010 Exergy Developments Burley,Hagerman,Tabor, ID ID GE 1.5MW 80 60 1.5
221 2010 Dynapower Corporation South Burlington, VT VT Northwind 100 30 1 0.1
222 2010 Testa Produce Chicago, IL IL Norwind 750 KW 55 1 0.8
223 2010 Bowentown Road Bridgetown, NJ NJ Northwind 100 37 1 0.1
224 2010 TJ Automation Archbold, OH OH Northwind 100 37 1 0.1
225 2010 Wynford Local Schools Bucyrus, OH OH Northwind 100 37 2 0.1
226 2010 Danbury Local School Marblehead, OH OH Northwind 100 37 1 0.1
227 2010 Town of Richland Richland, NY NY Northwind 100 37 1 0.1
228 2010 CCRTA South Dennis, MA MA Northwind 100 37 1 0.1
229 2010 Case Western University Cleveland, OH OH Northwind 100 37 1 0.1
230 2010 Byers Mazda Columbus, OH OH Northwind 100 37 1 0.1
231 2010 Pine Ridge Job Corps Chadron, NB NB Northwind 100 37 1 0.1
232 2010 Bedford Heights Bedford Heights, OH OH Northwind 100 37 1 0.1
233 2010 Angell Job Corps Yachats, OR OR Abund. Renew. Ener. 90 2 0.1
234 2010 Byers Mazda Columbus, OH OH Northwind 100 37 1 0.1
235 2011 Kingman Kingman, AZ AZ Gamesa G90 2-MW 69 5 2.0
236 2011 Safeway Distribution Center Tracy, CA CA Mitsub MWT 1000A 55 2 1.0
237 2011 Granite Reliable Dummer, NH NH Vestas V-90 3 MW 80 33 3.0
238 2011 Hawaii Beef Produce Paaulio, HI HI Northwind 100 37 1 0.1
239 2011 Hawaii Water Service Waikola, HI HI Northwind 100 37 1 0.1
240 2011 BHE Bus Stop Lafette, IN IN Northwind 100 37 1 0.1
241 2011 Rollins Mountain Lincoln, ME ME GE 1.5MW 80 40 1.5
242 2011 Record Hill Record Hill, ME ME Siemens 2.3 MW 80 22 2.3
243 2011 Windstar I Kern County, CA CA Gamesa G80/G87 2-MW 80 60 2.0
244 2011 Zotos Geneva, NY NY Wintec 1650 KW 80 2 1.7
245 2011 NCCI-MWCC Gardner, MA MA Vestas V82 80 4 1.7
246 2011 Horse Butte Idaho Falls, ID ID Vestas V100 32 30 1.8
247 2011 Eco Point Tehachapi, CA CA GE Wind 1.6 xle 80 1 1.6
248 2011 Blair Fox Lancelin, Australia AU Enercon E40 45 20 10.0
249 2011 Solano III Solano County, CA CA Vestas V90 80 24 3.0
250 2011 Solano III Solano County, CA CA Vestas V90 80 31 1.8
251 2011 Alteris Shalom Housing Warwick, RI RI Northwind 100 37 1 0.1
252 2011 Scituate Wind Scuitate, MA MA Sinovel SL 1500 80 1 1.5
253 2011 Alteris Lake Champaign South Hero, VT VT Northwind 100 37 1 0.1
254 2011 47 Marion Kingston, MA MA Gamesa G90 78 3 2.0
255 2011 Sawtooth Elmore County, ID ID GE Wind 1.6 xle 80 14 1.6
256 2011 Whitewater Hill Whitewater, CA CA Vestas V90 80 2 3.0
257 2011 NextEra Cabazon B-02 Cabazon, CA CA Vestas RRB 65 1 0.6
258 2011 Over Yonder Cay Over Yonder Cay, Bahama BS Northwind 100 30 2 0.1
259 2011 Palm Spring Wind Palm Springs, CA CA GE Wind 1.5 XLE 65 4 1.5
260 2011 Anhueser-Busch Fairfield, CA CA GE Wind 1.5-77 65 1 1.5
261 2011 IEUA Rancho Cucamonga, CA CA Mitsubishi MWT 1000A 55 1 1.0
262 2011 Fisherman Memorial Narragansett, RI RI Northwind 100 37 1 0.1
263 2011 Power County Wind Power County, ID ID Nordex 1000 80 18 2.5
264 2011 Kingston Landfill Kingston, MA MA Hyundai DF2000 80 1 1.7
265 2011 Gilbane, NBC Narragansett Bay, RI RI Goldwind 82-1500 80 3 1.5
266 2011 Port of Milwaukee Milwaukee, WI WI Northwind 100 37 1 0.1
267 2011 Terra Gen 31D & 4D Tehachapi, CA CA RRB 600 kW 65 2 0.6
268 2011 Jeff-Leen Farm Town of Sherman, WI WI Northwind 100 37 1 0.1
269 2012 Mountain Air Elmore County, Idaho ID Siemens 2.3 80 60 2.3
270 2011 Pindar Nursey Conic Bay, NY NY Northwind 100 37 1 0.1
271 2011 J Bar 9 Cody, WY WY Northwind 100 30 1 0.1
272 2011 St Leon II St Leon, MB MB Vestas V82 80 9 1.7
273 2011 Northland Job Corp Vergennes, VT VT Northwind 100 37 1 0.1
274 2011 Cemex Madison Madison, CA CA GE Wind 1.5-77 65 1 1.5
275 2011 Port of Milwaukee Milwaukee,WI WI Northwind 100 37 1 0.1
276 2011 Pindar Winery Conic Bay, NY NY Northwind 100 37 1 0.1
277 2012 Camelot Plymouth, MA MA Goldwind 82/1500 70 1 1.5
278 2012 Scituate Scituate, MA MA Sinovel SL 1500 80 1 1.5
279 2012 Ipswich II Ipswich, MA MA Hyundai DF2000 80 1 2.0
280 2012 UMass Dartmouth, MA MA Turbowinds T600 50 1 0.6
281 2012 Fairhaven Wind Fairhaven, MA MA Sinovel SL 1500 80 2 1.5
282 2012 Camelot Drive Plymouth, MA MA Goldwind 82-1500 70 1 1.5
283 2012 San Nicholas Island San Nicholas Island, CA CA Northwind 100 37 3 0.1
284 2012 Nestle Water Cabazon, CA CA GE 1.5-77 65 2 1.5
285 2012 Cemex Madison Facility Yulo County,CA CA GE 1.5-77 65 1 1.5
286 2012 FloDesign Kern County, CA CA FD 100 39 1 0.1
287 2012 Kawailoa Hawaii Oahu, HI HI Siemens 2.3 100 30 2.3
288 2012 King Mtn, TX - A55, N21, H02 McCamey, TX TX GE 1.5sle 80 3 1.5
289 2012 Northport Northport,MI MI Vestas V20 40 1 0.1
290 2012 UTB Brownsville, TX TX Northwind 100 37 1 0.1
291 2012 WKN Mozart Rotan,TX TX Nordex N100 80 12 2.5
292 2012 Walmart Red Bluff Red Bluff,CA CA GE 1.5sle 65 1 1.5
293 2012 Bull Hill East Brooke, ME IN Vestas V100 95 19 1.8
294 2012 Kingdom Community Wind Lowell, VT VT Vestas V112 84 21 3.0
295 2012 Butter Creek Hermiston, OR OR Sany SE100 80 10 2.0
296 2012 Varian, Gloucester, MA Gloucester, MA MA Vestas V100 80 1 1.8
1 2011 Cao Shan Liang Shaanxi, Province CHN United Power 82 1.5 MW 80 33 1.5
2 2011 Hu Ran Xinjiang Province CHN MingYang 3 MW 70 16 3.0
3 2011 Hong Si Pu I Ning Xia Province CHN Goldwind 87-1500 70 33 1.5
4 2011 Hong Si Pu II Ning Xia Province CHN Goldwind 87-1500 70 33 1.5
5 2011 Shaanxi Fan Shougou II Shaanxi Province CHN UP86/1500 80 33 1.5
6 2011 Ji Shan Liang I Shaanxi Province CHN UP86/1500 80 33 1.5
7 2011 Ji Shan Liang II Shaanxi Province CHN UP86/1500 80 33 1.5
8 2011 Ji Shan Liang III Shaanxi Province CHN UP86/1500 80 33 1.5
9 2011 Hai Wei Zhi You Xin Jiang Province CHN Hai Zhuang 2 MW 80 25 2.0
10 2011 Da Ban Cheng Xin Jiang Province CHN Goldwind 103/2500 80 8 2.5

TOTAL FOUNDATIONS BUILT

6554