guidelines for coal plant - eprimydocs.epri.com/docs/publicmeetingmaterials/0911/7cnete7...on...
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Guidelines for Coal Plant Decommissioning
Jeff Clock Sr. Project ManagerEPRIPlant Closure WorkshopNovember 12, 2009
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2© 2009 Electric Power Research Institute, Inc. All rights reserved.
• 25,000 MW of coal-firedgenerating facilities to beretired in the next few years
• ~5% of total US coal-fired capacity
• Retirements include lay-upor mothballing as well as full decommissioning
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3© 2009 Electric Power Research Institute, Inc. All rights reserved.
2004 EPRI Study
• Review of requirements fordecommissioning coal plants
• Three Case Studies:-Plant Arkwright- Georgia Power- Watts Bar – TVA- Port Washington – We Energies
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Considerations in Plant Decommissioning
Preliminary Planning
Environmental and Safety Issues
Decommissioning Tasks
Future Use of the Site a Key Consideration!
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Preliminary Planning
• Alternative strategies for post-operational maintenance of site
• Maintain the site at present condition with minimal cleanup
• Perform minimal dismantling and demolition • Dismantle to the degree required to meet specific needs
of a planned reuse of the site• Full decommissioning
• Financing availability can influence strategy selected.
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6© 2009 Electric Power Research Institute, Inc. All rights reserved.
Environmental and Safety Issues
• Environmental regulations can have a profound influence on decommissioning a power plant.
• Compliance with environmental statutes must be maintained throughout demolition and remediation.
• Existing permits must be modified, revised, or cancelled and/or new permits obtained.
• Planning should include an environmental assessment of the decommissioning process, with review of the draft plans by environmental leaders in the company.
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Regulations/Permitting
• Clean Air Act• NPDES• Solid Waste Management• USTs• FAA• OSHA• Historic Preservation• CERCLA• NEPA• Property Records• Chemicals of concern: asbestos, lead, PCBs, mercury
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Decommissioning Tasks
•Detailed Project Planning•Administrative Actions•Plant Shutdown•Site Preparation for dismantlement•Dismantlement of Buildings and Equipment•Site Remediation and Restoration
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Watts Bar Fossil Plant
• Four 1940’s coal-fired units with a 240 Mw Capacity
• Located in a rural area in Reah County, Tennessee
• Co-located on site with hydroelectric and nuclear facilities
• Retired in 2000• State of partial demolition• Estimated cost: $17M – 25M
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10© 2009 Electric Power Research Institute, Inc. All rights reserved.
Plant Arkwright
• Four 1940’s coal-fired units with a 160 Mw Capacity
• Located in a rural area in Macon, Georgia
• Retired in 2002• Demolition and site cleanup and
ash pond closure completed• Estimated cost: $19M
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Port Washington Power Plant
• Six coal-fired units built in 1930’s and 1940’s with a 341 MW capacity
• Located on Lake Michigan in City of Port Washington, WI
• Units 4-6 decommissioned in 2004at a cost of $12.4 M
• Units 1-3 demolished 2004-2006at a cost of $17M to $22M
• Site to be used for gas-fired unitswith addition property donated to City.
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12© 2009 Electric Power Research Institute, Inc. All rights reserved.
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