PUBLIC INPUT HEARING Deubrook Elementary School Gymnasium Toronto, - - PowerPoint PPT Presentation

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PUBLIC INPUT HEARING Deubrook Elementary School Gymnasium Toronto, - - PowerPoint PPT Presentation

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ASTORIA STATION PUBLIC INPUT HEARING Deubrook Elementary School Gymnasium Toronto, South Dakota November 27 th , 2017 Docket: EL 17-042 1 PRESENTERS Bill Swanson, Manager, Supply Engineering Astoria Station Project Manager Mark

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Deubrook Elementary School Gymnasium Toronto, South Dakota November 27th, 2017 Docket: EL 17-042

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ASTORIA STATION PUBLIC INPUT HEARING

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  • Bill Swanson, Manager, Supply Engineering
  • Astoria Station Project Manager
  • Mark Thoma, Manager, Environmental Services
  • Astoria Station Permitting Manager

PRESENTERS

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  • HDR
  • Air Permit and Site Permit Support
  • Sargent & Lundy
  • Preliminary Engineering
  • First District Association of Local Governments
  • Social & Economic Impact Study
  • Banner Engineering
  • Groundwater Evaluation
  • Power Engineers
  • Generation-Tie Line Design

CONSULTANTS SUPPORTING PROJECT

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  • Who we are
  • Project need and location
  • Project components and schedule
  • Community impacts
  • Environmental review

AGENDA

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WHO WE ARE

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WHO WE SERVE

  • 70,000 Square Miles
  • 131,551 Customers
  • 422 Communities
  • Avg. population ≈400
  • 796 Employees
  • 472 Minnesota
  • 205 North Dakota
  • 119 South Dakota
  • About 800 MW owned

generation

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80% 10% 9% 1% 53% 4% 31% 12% 59% 16% 24% 1%

2001 2011 2021

HOW WE CREATE ELECTRICITY

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PROJECT NEED AND LOCATION

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Astoria Station is a needed project for OTP. Three factors:

  • 1. Hoot Lake Plant is retiring in May 2021.
  • Hoot Lake is a 140 MW coal-fired facility in Fergus Falls, MN.
  • 2. We have expiring capacity contracts in approximately the same

timeframe.

  • 3. We project future load growth.

PROJECT NEED & KEY HISTORY

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ASTORIA, SD - LOCATION

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Intersection of new 345 kV transmission and major natural gas pipeline is key to SD site advantage

Northern Border Natural Gas Line Project Site near Astoria, SD BSSB – Big Stone South to Brookings 345 kV CAPX

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PROJECT SITE OVERVIEW

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N

28 311

OTP Property Astoria

482nd Ave

345 kV Line Existing Northern Border Natural Gas Pipeline

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PROJECT COMPONENTS AND SCHEDULE

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  • Astoria Station will be an

approximate 250 MW simple- cycle natural gas combustion turbine.

  • The peaking plant will serve

during periods of high demand

  • r when other generating

sources are not available.

  • Cost ~$165M. We expect the

station to be online in 2021.

ASTORIA STATION

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  • Resources Needed:

Water, Air, Natural Gas

  • Major Components:
  • Inlet Air Filter
  • Air Compressor Section
  • Gas Combustion Chamber
  • Power Turbine
  • Electrical Generator
  • Generator Step Up Transformer

SIMPLE CYCLE TURBINE

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PLANT GENERAL ARRANGEMENT

Side View 45° Angle View

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  • Less than ½ mile to interconnect to

BSSB 345-kV transmission system

  • 3-5 new structures
  • OTP’s property connects to the

preliminary location identified for the BSSB switching station

GEN-TIE LINE

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  • Will connect into the Northern

Border Pipeline on Otter Tail property

  • < 1,000’ pipe from meter

station to turbine

  • 10” diameter pipe

NATURAL GAS PIPING

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OTP Property Existing Northern Border Pipeline N

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  • Onsite well is proposed
  • < 1,500’ long, 5” diameter pipe to

storage tank

  • Proposed capacity of 100 gpm
  • Above ground 350,000 gallon

storage tank

  • There will be many days or months

when process water is not required

WATER LINE

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Well OTP Property

Existing Northern Border Pipeline

482nd Ave

N

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PROJECT SCHEDULE

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COMMUNITY IMPACTS

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Date Number of Workers Onsite Ground Breaking and Month 1 20 Month 2 30 Month 3 30 Month 4 40 Month 5 50 Month 6 60 Month 7 60 Month 8 70 Month 9 70 Month 10 70 Month 11 60 Month 12 40 Month 13 30

CONSTRUCTION WORKFORCE

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  • Most likely heavy haul route will be

East along Hwy 28 from I29 to 482nd Ave.

  • Road agreements and heavy haul

permits will be reviewed with the Township/County.

  • Necessary roadway improvements

will be made to 482nd Ave.

TRANSPORTATION

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  • Astoria Station will pay property tax totaling approximately $3 million

within the first five years of operation, then approximately $1 million each subsequent year.

  • These tax payments will get distributed between the Deubrook

School District, Deuel County, Scandinavia Township, and the Water and Fire District.

  • Astoria Station will:
  • Create construction jobs that equates to approximately $30 million

in labor.

  • Require three to five full-time employees to operate.

ECONOMIC IMPACTS

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Representatives From:

  • Deuel County Commission
  • Brookings County Commission
  • Deubrook School District 05-6
  • Deuel School District 19-4
  • Town of Astoria
  • Town of Brandt
  • Town of Toronto
  • Otter Tail Power Company

LOCAL REVIEW COMMITTEE

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Areas to Study:

  • Housing Supplies
  • Educational Facilities and Manpower
  • Water Supply and Distribution
  • Wastewater Treatment and Collection
  • Solid Waste Disposal and Collection
  • Law Enforcement
  • Transportation
  • Fire Protection
  • Health
  • Recreation
  • Government
  • Energy
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ENVIRONMENTAL REVIEW

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ENVIRONMENTAL REVIEW

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Impacts Studied Included:

  • Aquatic Ecosystems: No wetland

impacts are anticipated

  • Cultural Resources: No historic

properties on the site

  • Terrestrial Ecosystems: No known

threatened, endangered, or rare species

  • Air Quality
  • Water Quality
  • Sound
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0.5 1 1.5 2 2.5 3 3.5 4

Astoria Station Modern Coal Plant Regional Fossil Average

AIR QUALITY: SULFUR DIOXIDE (SO2) LBS/MWH

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0.5 1 1.5 2 2.5

Astoria Station Modern Coal Plant Regional Fossil Average

AIR QUALITY: NITROGEN OXIDE (NOX) LBS/MWH

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500 1000 1500 2000 2500

Astoria Station Modern Coal Plant Regional Fossil Average

AIR QUALITY: CARBON DIOXIDE (CO2) LBS/MWH

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WATER QUALITY

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Water Appropriation:

  • Test well installed into the Altamont aquifer
  • Well depth of 679 feet; reports on file with

DENR for other wells within five miles are into shallower aquifers

Surface Water and Stormwater:

  • Existing surface water drainage patterns

will not be altered

  • Stormwater from site operations will be

directed into a stormwater retention pond

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SOUND COMPARISONS

31 20 36 50 60 60 70 84 120 20 40 60 80 100 120 140

Whisper Rural Night Setting Office Astoria Station from 482nd Ave Normal Conversation Passenger Car Tractor Jet Plane at Takeoff

dBA

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Thank You!

For the latest Project information:

  • tpco.com/AstoriaStation