alaska village electric cooperative toksook bay, alaska wind working group brent petrie anna sattler...
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Alaska Village Electric CooperativeToksook Bay, Alaska
Wind Working Group
Brent PetrieAnna Sattler
Nome, AKNovember 2010
AVEC is a non-profit member-owned co-op
• 53 villages• 22,000 population – Would be the 4th
largest city in Alaska after Anchorage, Fairbanks and Juneau
• 94% Alaska Native• 48 power plants• 9 wind systems serving
12 villages• 160+ diesel generators
• 500+ fuel tanks• 5 million gallons fuel
burned• 7,700 services• 80 Anchorage-based
employees• 95 Village technicians
AVEC Board Goals• Reduce diesel use by 25% in 10 Years– 1,250,000 gallons– 77% of our fuel is used in Wind Class 4+ villages
• Reduce power plants by 50% in 10 Years– Interconnect another 24 villages
• Reduce non-fuel costs by 10%– Plant costs, depreciation, interest…– On January 1st, 2010 AVEC reduced rates 2 cents/kWh
Wind Potential for AVEC
• 39 of AVEC’s 53 villages are in 4+ wind regimes
• A high-efficiency generator yields 14 kWh/gallon
• A 100-kW turbine could produce 220,000 kWh/yr
• One unit could displace 16,000 gallons • Four units = 64,000 gallons
AVEC Wind Projects
2003 Selawik
2006 Kasigluk – with tie line to Nunapitchuk
2006 Toksook Bay - with tie line to Tununak & tie line to Nightmute
2008 Hooper Bay and Savoonga
2009 Gambell and Chevak in construction, commissioning in process in 2010
2009 Mekoryuk erected, commissioning in 2010
2010 Quinhagak – erected, commissioning in 2010
2010 Toksook (one more turbine)
2011 Emmonak/Alakanuk and Shaktoolik
Kasigluk
Future IntertiesBrevig Mission - TellerSt. Mary’s - Mt. VillageSt. Mary’s - Pilot StationSt. Michael’s - StebbinsEmmonak - AlakanukNew Stuyahok - EkwokTogiak - Twin HillsNoorvik – Kiana – SelawikAmbler – Shungnak – KobukUpper Kobuk – Lower Kobuk
Wind Potential for AVEC
We would need 80 100kW machines to displace 1,250,000 gallons.
• As of November 1st, 2010, we have 19 100kW units operational and 5 more scheduled to be operational in the next 2 months.
• Construction is scheduled to begin on 6 100kW machines in 2011.
• 4 65kW machines were installed in Selawik in 2003.
In 2009, 11 100kW machines were operational for the entire year and, including limited
output from the 4 smaller turbines at Selawik, wind accounted for 2.8% of gross generation,
displacing about 140,964 gallons of fuel.
The fuel would have been worth $517,931.
1973
1974
1975
1976
1977
1978
1979
1980
1981
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1989
1990
1991
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1995
1996
1997
1998
1999
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2001
2002
2003
2004
2005
2006
2007
2008
2009
$0.000
$0.250
$0.500
$0.750
$1.000
$1.250
$1.500
$1.750
$2.000
$2.250
$2.500
$2.750
$3.000
$3.250
$3.500
$3.750
$4.000
$4.250
$4.500
$4.750
$5.000$0
.354 $0
.515
$0.5
78
$0.6
49
$0.7
18
$0.7
79 $0.9
68
$1.3
30
$1.6
01
$1.6
10
$1.5
65
$1.2
96
$1.2
03
$0.8
42
$0.9
80
$0.9
64
$1.0
33
$1.0
97
$1.1
90
$1.2
24
$1.2
59
$1.2
08
$1.2
15
$1.2
81
$1.2
63
$1.0
88 $1.2
16
$1.3
67
$1.3
89
$1.1
60 $1.3
50
$1.9
40
$1.9
50
$2.2
70
$2.9
30
$4.5
90
$3.0
20
AVEC Systemwide Average Fuel Prices 1973-2009
Using wind fuel, AVEC has saved a total of:
Gallons of Fuel Oil Displaced
Money Saved on Displaced
Fuel Oil
435,186 $1,380,551
2006 2007 2008 2009 thru July 2010
$0$50,000
$100,000$150,000$200,000$250,000$300,000$350,000$400,000$450,000$500,000$550,000
Fuel Oil Savings Per Year
2006 2007 2008 2009 thru July 2010
0
20,000
40,000
60,000
80,000
100,000
120,000
140,000
160,000
Fuel Oil Displaced in Gallons Per Year
#16
Building Human
Capacity
• AVEC and its contractors are building local capacity by training wind technicians who live in the villages.
• These trainees have worked in the construction and operation of the new systems.
Charles Green Sr. of Toksook Bay - leftElias Friday of Chevak - middleLawrence Lake of Hooper Bay - right
Wind Technician Julius Bell adjusting the rotor assembly during the installation of the NW100 wind turbines.
Lawrence Lake and Julius Bell standing by a nacelle in Hooper Bay
Selawik, AlaskaNew modular power plant, bulk fuel tank farm, four wind turbines, and waste heat recovery system
Other Projects
Port Clarence Hydrokinetic Project• Hydrokinetic power generation in Port
Clarence at the entrance to Grantley Harbor near Teller and Brevig Mission
Port Clarence Hydrokinetic Project
Port Clarence
Grantley Harbor
Brevig Mission
Teller
Area of high velocity tidal currents
Port Clarence Hydrokinetic Project
Replicability elsewhere in Alaska• The outcomes of this study can be applied to
similar locations along Alaska’s northwest coast, where barrier islands and narrow ocean spits dominate the landscape
Port Clarence Hydrokinetic Project
Project benefits• Reduced energy costs in both communities
• Lessons learned (study methods, feasibility analysis and generator selection methodology) which could be applied to other communities