Transcript Grid Integration and Power Quality

Kodiak Electric Association, Inc.
Darron Scott, President/CEO
KEA’s Vision
Kodiak Electric Association, Inc.
 Locally-Owned Electric Cooperative
 Provides Electricity to approximately 5,800 Meters
 Isolated Electric Grid
 Peak Load – 26 MW
 Minimum Load – 11 MW
 Diverse Power Generation Portfolio
 Terror Lake Hydroelectric Plant: Two 11.5 MW Units
 Pillar Mountain Wind Project: Three 1.5 MW Units
 Four Diesel Generating Stations
 Generator size ranges from 140 kW to 6.5 MW
 Total diesel generating capacity of 33 MW
KEA’s System Prior to 2009
20%
Diesel
80%
Hydro
Pillar Mountain Wind Project
•Three 1.5 MW General Electric (GE)
Wind Turbines
•Operating since July 2009
Photo courtesy of
Dake Schmidt
Pillar Mountain and Terror Lake
Hydroelectric Facility
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Terror Lake Works like a battery
Lowers fuel costs
Stabilizes power costs
Lowers Emissions
8:00:00
8:00:45
8:01:30
8:02:15
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Load Variability
KW Output
4500
4000
3500
3000
2500
2000
KW Output
1500
1000
500
0
Pillar Mountain Wind Project, Phase I
•Approximately 98%
availability
•28,472,822 kWh generated
since July 2009
•2,005,128 gallons of diesel
saved
•22,559 tons of CO2 saved
Net Savings to Community
 At $3.30 per gallon for diesel, approximately
$4.5 million net savings.
KEA’s Current Power Sources
• 80% Hydro
• 11% Diesel
• 9% Wind
Generation Comparison
New System
Old System
11% Diesel
20% Diesel
9% Wind
80% Hydro
80% Hydro
Road Work and Building the Foundation
Underground and Overhead Power Lines
Transportation
Assembly
First Completed Wind Turbine
Next Steps to Vision
• Terror Lake Third Hydroelectric Turbine
• Additional Three Wind Turbines
• Energy Storage System
Terror Lake Third Hydroelectric Turbine
Additional Pillar Mountain Wind Turbines
Energy Storage System
• Xtreme Power Battery System
Expected Future KEA System
16%
Wind
2% Diesel
82%
Hydro
KEA’s Vision