HomeMy WebLinkAboutWind Feasability Study Bristol Bay Vaught V3 Energy LLC Presentation 03-2007Wind Feasibility Study
Bristol Bay Region, Alaska
Doug Vaught, P.E., V3 Energy LLC, Eagle River, AK
October 2003 to March 2007
Bristol Bay villages monitored for
wind resource assessments
•Dillingham (two locations)
•New Stuyahok
•Togiak
•Perryville
• Clark’s Point
•Koliganek
•Naknek/King Salmon (two locations)
•Kokhanok
Table 10 50-meter Wind Power Density Site Comparison
Site
Wind Power
Density 50
meters,
W/m2
Wind Power
Density
30 meters,
W/m2
Average Wind
Speed
30 meters,
m/s
Wind Power
Class
Wind Class
Description
1 Kokhanok 763 690 7.84 6 Outstanding
2 Clark's Point 491 423 6.94 4 Good
3 New Stuyahok 414 232 5.46 4 Good
4 Koliganek 404 320 5.72 4 Good
5 Dillingham - Woodriver 375 272 5.88 3 Fair
6 Dillingham - Kanakanak 374 230 5.78 3 Fair
7 Naknek 368 301 6.22 3 Fair
8 Togiak 311 256 5.68 3 Fair
9 Perryville 240 185 4.60 2 Marginal
Note: Wind Power Class and description based on 50-meter wind power density data
Table 12 30-meter Average Annual Wind Speed Comparison
Community
Average Wind
Speed
30 meters, m/s
Wind Power
Density
30 meters, W/m2
Wind Power
Density
50 meters, W/m2
Wind Power
Class
Wind Class
Description
1 Kokhanok 7.84 690 763 6 Outstanding
2 Clark's Point 6.94 423 491 4 Good
3 Naknek 6.22 301 368 3 Fair
4 Dillingham - Woodriver 5.88 272 375 3 Fair
5 Dillingham - Kanakanak 5.78 230 374 3 Fair
6 Koliganek 5.72 320 404 4 Good
7 Togiak 5.68 256 311 3 Fair
8 New Stuyahok 5.46 232 414 4 Good
9 Perryville 4.60 185 240 2 Marginal
Kokhanok met tower site
Table 5 Kokhanok Summary Data
Wind power class Class 6 –Outstanding
Wind speed annual average (30 meters)7.84 m/s
Maximum wind gust 40.1 m/s (November 2004)
Mean wind power density (50 meters)763 W/m2 (calculated)
Mean wind power density (30 meters)690 W/m2 (measured)
Weibull distribution parameters k = 1.64, c = 8.77 m/s
Roughness class 0.00 (smooth)
Power law exponent 0.0725 (very low wind shear)
Turbulence intensity 0.0985 (low)
Data start date August 12, 2004
Data end date June 14, 2006
Figure 11 Kokhanok Seasonal Wind Speed Profile
Figure 12 Kokhanok Wind Power Density Rose
Hub Hub Height Time At Time At Average Net Annual Net Average Net
Height Wind Speed Zero Output Rated Output Power Output Energy Output Capacity Factor
Turbine (m)(m/s)(%)(%)(kW)(kWh/yr)(%)
Southwest Skystream 3.7 10.7 7.37 18.8 20.9 0.88 7,711 48.9
Bergey Excel-S 18 7.63 11.5 10.1 3.81 33,376 38.1
Fuhrländer FL30 26 7.80 10.9 6.8 15.1 132,559 45.9
Entegrity eW-15 60 Hz 25 7.78 24.6 10.3 25.3 221,978 39.0
Vestas V15 25 7.78 28.7 6.8 25.3 221,585 33.7
Northern Power NW 100/20 25 7.78 24.6 9.2 37.4 327,963 37.4
Turbine Power Output Comparison (100% availability)
Hub Hub Height Time At Time At Average Net Annual Net Average Net
Height Wind Speed Zero Output Rated Output Power Output Energy Output Capacity Factor
Turbine (m)(m/s)(%)(%)(kW)(kWh/yr)(%)
Southwest Skystream 3.7 10.7 7.37 18.8 20.9 0.80 6,963 44.2
Bergey Excel-S 18 7.63 11.5 10.1 3.44 30,141 34.4
Fuhrländer FL30 26 7.80 10.9 6.8 13.7 119,710 41.4
Entegrity eW-15 60 Hz 25 7.78 24.6 10.3 22.9 200,461 35.2
Vestas V15 25 7.78 28.7 6.8 22.8 200,107 30.5
Northern Power NW 100/20 25 7.78 24.6 9.2 33.8 296,173 33.8
Turbine Power Output Comparison (90% availability)
Turbine
Annual
Energy
Output
(kW-
hr/yr)
Fuel
Quantit
y
Avoide
d
(liters)
Fuel
Quantit
y
Avoide
d
(gallon
s)
Fuel Price (USD/gallon)
Turbin
e Hub
Height
(m)$1.75 $2.00 $2.25 $2.50 $2.75 $3.00 $3.25
Southwest Skystream 3.7 6,963 2,109 557 $975 $1,114 $1,253 $1,393 $1,532 $1,671 $1,810 10.7
Bergey Excel-S 30,141 9,128 2,411 $4,220 $4,823 $5,425 $6,028 $6,631 $7,234 $7,837 18
Fuhrländer FL30 119,710 36,252 9,577 $16,759 $19,154 $21,548 $23,942 $26,336 $28,730 $31,125 26
Entegrity eW-15 60 Hz 200,461 60,706 16,037 $28,065 $32,074 $36,083 $40,092 $44,101 $48,111 $52,120 25
Vestas V15 200,107 60,599 16,009 $28,015 $32,017 $36,019 $40,021 $44,024 $48,026 $52,028 25
Northern Power NW 100/20 296,173 89,691 23,694 $41,464 $47,388 $53,311 $59,235 $65,158 $71,082 $77,005 25
Notes:
1. Kokhanok electrical energy production efficiency assumed to be 12.5 kW-hr/gal
2. Assumes 90%wind turbine availability with no diversion of power to a thermal or other dump load
3. Assumes linear diesel generator fuel efficiency (i.e., 1:1 tradeoff of wind turbine kW-hr to diesel genset kW-hr)
Final Project Report
Bristol Bay Native Corporation
Wind and Hydroelectric Feasibility Study
Grant Number DE-FG36-03G013023, A000
Submitted to:
U.S. Department of Energy, Golden, Colorado, Field Office
Tribal Energy Program
March 31, 2007
Bristol Bay Native Corporation
111 W. 16th Avenue, Suite 400
Anchorage, Alaska 99501
Final Report Availability
•On Dept. of Energy website:
http://www.eere.energy.gov/tribalenergy/
•Bristol Bay Native Corporation –
Tiel Smith, Land Resources Manager,
278-3602
•Doug Vaught –V3 Energy LLC, 350-5047