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

Wind Map

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

1982

1983

1984

1985

1986

1987

1988

1989

1990

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

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

AVEC 2009 Fuel Use By Village

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

Training is underway for several wind technicians

Kasigluk, March 2010

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

Project Area

Port Clarence Hydrokinetic Project

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

Kivalina

Examples of Possible Hydrokinetic Projects

Shaktoolik

Examples of Possible Hydrokinetic Projects

Shishmaref

Examples of Possible Hydrokinetic Projects

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

Alaska Village Electric Cooperative

Thank you

Toksook Bay, Alaska