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Calvert Cliffs Unit 3 Update

Susan Gray, Power Plant Research ProgramPresentation to PPRAC

September 27, 2010

Image or Graphic

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Calvert Cliffs Unit 3 Update

• UniStar - Constellation joint venture with EdF

• Applications– State permit – Certificate of Public

Convenience and Necessity (Maryland PSC)• Case 9127 – CPCN issued June 2009• Case 9218 – CPCN issued August 2010

– Federal permit – Combined Construction and Operating License (NRC/USACE); PPRP – State lead for NRC review; Maryland participating as an “Interested State.”

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Calvert Cliffs Unit 3 Update

Artist’s rendering

Existing2 Units

CC3HybridCoolingTower

NewUniStarUnit(CC3)

CC3SwitchYard

BargeSlip

ExistingIntakeStructure

NewIntake

If constructed, CCU3 would be one of the largest nuclearplants in the world. Benefits would include~350 new jobs and ~$20M annual property tax payments.

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Calvert Cliffs Unit 3 Update

• Critical Area• Forest• Streams & Wetlands• Habitats

– Oyster– Bald Eagle– Threatened/Endangered Species

• Tiger Beetle• Showy Goldenrod

• Archaeological/Historical/Cultural

• Water• Air• Traffic

Case 9127 - Impacts

~ 100 recommendedCPCN conditions

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Calvert Cliffs Unit 3 Update

Other Case 9127 CPCN Conditions:• Site Redress Plan• Significant reduction or elimination of ground

water use from CCNPP 1 & 2 from CCU3 Desalination Plant (excess capacity)

• Analyze alternatives for the unanticipated event of the unavailability of the desalination plant

• CPCN reopened if Nuclear Regulatory Commission (NRC) conditions conflict with CPCN conditions– Draft EIS issued 04/2010: Consistent with CPCN Case

9217; did not address changes stemming from Case 9218. PPRP submitted comments to NRC 07/2010 (no major issues).

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Calvert Cliffs Unit 3 Update

Artist’s rendering

Case 9127 CCU3 Air Permit

Apply Best AvailableControl Technology:

Cooling Towers(minimize salt drift by drift eliminators & limitson total dissolved solids)

Emergency andStation BlackoutDiesel Generators(minimize emissionsby use of low-sulfurdiesel fuel & limitson operation)

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Calvert Cliffs Unit 3 Update

Case 9218 Changes to the Air Permit:• minor changes to the layout or stack

design of the air emissions• add two types of new air emission

sources – two emergency fire water pumps and two sponge media blasting units

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Calvert Cliffs Unit 3 Update

USACE & MDE Ongoing Evaluations:Streams & Wetlands

~12 acres wetlands, 30 acres of wetland buffersand 8,000 linear feet of stream beds impacts willbe mitigated by in-kind creation, restoration orenhancement elsewhere on the property.

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Calvert Cliffs Unit 3 Update

• CPCN/CAC Approvals – done• USACE/MDE Review on Tidal & Nontidal

Wetlands – in sync with NRC schedule• NRC process

– Design Certification– Final EIS (02/2011)– Final SER (07/2012)– COL w/ITAAC

NRC jurisdiction:Nuclear Waste Disposal

Radiological Emergency PlanningDecommissioningRisk Assessment

Design Safety AnalysisSite Specific Safety and Security Analyses

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Calvert Cliffs Unit 3 Update

• Questions?