Basin Electric
proposes to build a
second 100 MW
Natural Gas fired
Peaking
Turbine Generator
Basin ElectricBasin Electric
proposes to build a proposes to build a
second 100 MWsecond 100 MW
Natural Gas firedNatural Gas fired
PeakingPeaking
Turbine GeneratorTurbine Generator
Basin Electric Power Cooperative
Basin Electric Power Cooperative
A Touchstone Energy A Touchstone Energy SMSMParterParter
2006 Summer Capacity2006 Summer Capacity2006 Summer Capacity
Coal – 81%Coal – 81%
Purchases – 8%Purchases – 8%Renewable – 1%Renewable – 1%
Oil – 4%Oil – 4%
Gas – 6%Gas – 6%
AABBFF
CCDD
E
A - Antelope ValleyA - Antelope Valley
B - Leland OldsB - Leland Olds
C - Laramie RiverC - Laramie River
D - Spirit MoundD - Spirit Mound
E - WY Distributive GenerationE - WY Distributive Generation
F - Dakota GasificationF - Dakota Gasification
G - Groton GenerationG - Groton Generation
GG
Wind ResourcesWind Resources
Minot3 MW
Chamberlain2.6 MW
North DakotaSouth Dakota
Edgeley40 MW
Highmore40 MW
Basin Service
Area
Basin Basin Service Service
AreaArea
East River Electric Power
Cooperative
East River East River Electric Electric Power Power
CooperativeCooperative
Northern Electric Cooperative, Inc.Northern Electric Northern Electric Cooperative, Inc.Cooperative, Inc.
GrotonGrotonGroton
0
100
200
300
400
500
600
700
800
900
1971
1973
1975
1977
1979
1981
1983
1985
1987
1989
1991
1993
1995
1997
1999
2001
2003
2005
2007
2009
2011
2013
2015
2017
2019
2021
2004 LF2007 LF - Preliminary
0
100
200
300
400
500
600
700
800
900
1971
1973
1975
1977
1979
1981
1983
1985
1987
1989
1991
1993
1995
1997
1999
2001
2003
2005
2007
2009
2011
2013
2015
2017
2019
2021
2004 LF2007 LF - Preliminary
MWEast River
Total Summer PeakEast RiverEast River
Total Summer PeakTotal Summer Peak
•Keystone Pipeline – 40 MW
•Ethanol – 68 MW
•Grain/Poultry/Sugar – 20 MW
•Sioux Falls Area – 216 MW
•Keystone Pipeline – 40 MW
•Ethanol – 68 MW
•Grain/Poultry/Sugar – 20 MW
•Sioux Falls Area – 216 MW
Other Major ConcernsOther Major ConcernsOther Major Concerns
• Low Hydro
• Loss of generator
• Transmission constraints
• Ability to move power into the region
• Low Hydro
• Loss of generator
• Transmission constraints
• Ability to move power into the region
AreaMapAreaAreaMapMap
NBPLNBPL
NBPLNBPL
Groton SiteGroton SiteGroton Groton
SubstationSubstation
T
GrotonGroton
Combustion Turbine Site
WAPA 115 kV SubstationWAPA 115 kV WAPA 115 kV SubstationSubstation
Groton 345 kV SubstationGroton 345 kV Groton 345 kV SubstationSubstation
Groton Property Boundaries
Site PlanSite Plan
GE LMS100GE LMS100GE LMS100
Heavy-duty low pressurecompressor derived fromGE’s Frame Technology
To Intercooler
LM AeroSuper core
5-Stage PowerTurbine
Approximate Water Usage
Approximate Water Approximate Water UsageUsage
• NOx control ~ 50 gpm• Evaporative cooling ~ 25 gpm
• NOx control ~ 50 gpm• Evaporative cooling ~ 25 gpm
Sound Level
Survey
Sound Sound Level Level
SurveySurvey 85 dBAGuarantee
85 dBAGuarantee
65 dBA Guarantee
65 dBA 65 dBA GuaranteeGuarantee
54 dBA Est. Project Noise54 dBA Est. Project Noise54 dBA Est. Project Noise
46-60 dBA Survey
4646--60 dBA 60 dBA SurveySurvey
33-90 dBA Survey3333--90 90 dBAdBA SurveySurvey
Typical Noise LevelsTypical Noise LevelsTypical Noise LevelsTypical Noise Source Noise Level (dBA)Ambulance siren at 100 feet 100
Motorcycle at 25 feet 90Typical construction site 85Single truck at 25 feet 80Urban shopping center 70Single car at 25 feet 65Typical highway at 100 feet 60
Residential area at night 40Residential area during the day 50
Rural area during the day 40Rural area at night 35Quiet whisper 30Threshold of hearing 20
Source: USEPA, 1974, Harris 1991, and Bell 1982Source: USEPA, 1974, Harris 1991, and Bell 1982
Construction ManpowerConstruction ManpowerConstruction Manpower
• 105-145• 40% to 60% Local• 105-145• 40% to 60% Local
Long-term EmploymentLongLong--term Employmentterm Employment
• 2 existing & 1 or 2 additional full-time positions
• 2 existing & 1 or 2 additional full-time positions
Permitting/EnvironmentalPermitting/EnvironmentalPermitting/Environmental
• Special exception permit• Air quality permit• Environmental Assessment• SD Public Utility Commission
• Special exception permit• Air quality permit• Environmental Assessment• SD Public Utility Commission
ScheduleScheduleSchedule
• Summer 2007 – Start Construction• April 2008 – First fire• June 2008 – Commercial operation
• Summer 2007 – Start Construction• April 2008 – First fire• June 2008 – Commercial operation