Facility Location Owner/Operator Weather Event Date of Event** Impact Duration of Impact Rated 

Electrical 

Output 

(MW)

Braidwood 2 Braceville, IL Exelon Severe Weather 08/23/2007 Scram 1 day 1160Arkansas Nuclear One 1 London, AR Entergy Nuclear Operations Tornado 02/06/2008 Power Reduction 19 days 836

Arkansas Nuclear One 2 London, AR Entergy Nuclear Operations Tornado 02/06/2008 Power Reduction 15 days 993

Saint Lucie 1 Jensen Beach, FL Florida Power & Light Flooding 08/21/2008 Scram 4 days 982River Bend St. Francisville, LA Entergy Nuclear Operations Hurricane 09/01/2008 Shutdown 24 day 967

Waterford Killona, LA Entergy Nuclear Operations Hurricane 09/01/2008 Shutdown 10 days 1168

Pilgrim Plymouth, MA Entergy Nuclear Operations Winter Storm 12/19/2008 Scram 3 days 677

Salem 2 Hancock's Bridge, NJ PSEG Nuclear Cold/Icing 01/03/2010 Scram 1 day 1158

Palo Verde 1 Wintersburg, AZ Arizona Public Service Co. Severe Weather 03/07/2010 Scram 3 days 1311

Fermi Newport, MI DTE Electric Co Tornado 06/06/2010 Scram 9 days 1122

Turkey Point 3 Homestead, FL Florida Power & Light Severe Weather 09/23/2010 Scram 2 days 802

LaSalle 1 Marseilles, IL Exelon Winter Storm 02/01/2011 Scram 8 days 1137

Surry 1 Surry, VA Dominion Generation Tornado 04/16/2011 Scram 6 days 838

Surry 2 Surry, VA Dominion Generation Tornado 04/16/2011 Scram 6 days 838

Browns Ferry 1 Athens, AL Tennessee Valley Authority Tornado 04/27/2011 Scram 26 days 1101

Browns Ferry 2 Athens, AL Tennessee Valley Authority Tornado 04/27/2011 Scram 27 days 1104

Browns Ferry 3 Athens, AL Tennessee Valley Authority Tornado 04/27/2011 Scram 35 days 1105

Prairie Island 2 Welch, MN Xcel Energy Severe Weather 05/09/2011 Scram 1 day 518Calvert Cliffs 1 Lusby, MD Exelon Hurricane 08/27/2011 Shutdown 4 days 866

Millstone 2 Waterford, CT Dominion Generation Ultimate Heat Sink (UHS) Temp 08/12/2012 Shutdown 11 days 869Waterford Killona, LA Entergy Nuclear Operations Hurricane 08/29/2012 Shutdown 5 days 1168

Indian Point 3 Buchanan, NY Entergy Nuclear Operations Hurricane 10/29/2012 Scram 4 days 1085Nine Mile Point 1 Scriba, NY Exelon Hurricane 10/29/2012 Scram 4 days 621Salem 1 Hancock's Bridge, NJ PSEG Nuclear Hurricane 10/30/2012 Scram 3 days 1168

Pilgrim Plymouth, MA Entergy Nuclear Operations Winter Storm 02/08/2013 Scram 8 days 677

Pilgrim Plymouth, MA Entergy Nuclear Operations UHS Temp 07/17/2013 Power Reduction 5.5 hours 677

Beaver Valley 1 Shippingport, PA First Energy Nuclear Operating Co. Cold/Icing 01/06/2014 Scram 22 days 921

Fort Calhoun Fort Calhoun, NE Omaha Public Power District Cold/Icing 01/10/2014 Scram 3 days 482Calvert Cliffs 1 Lusby, MD Exelon Winter Storm 01/21/2014 Scram 4 days 866Calvert Cliffs 2 Lusby, MD Exelon Winter Storm 01/21/2014 Scram 4 days 850Arkansas Nuclear One 1 London, AR Entergy Nuclear Operations Severe Weather 836

Arkansas Nuclear One 2 London, AR Entergy Nuclear Operations Severe Weather 993Fort Calhoun Fort Calhoun, NE Omaha Public Power District Flooding 482Turkey Point 3 Homestead, FL Florida Power & Light UHS Temp 802

Turkey Point 4 Homestead, FL Florida Power & Light UHS Temp

04/27/2014 Power Reduction 1 day

04/27/2014 Scram 17 days06/20/2014 Power Reduction 2 days07/20/2014 Power Reduction up to 8 hours on 5 separate days* 07/20/2014 Power Reduction up to 8 hours on 5 separate days* 802

Donald C. Cook 1 Bridgman, MI Indiana Michigan Power Company Severe Weather 11/01/2014 Scram 3 days 1030Donald C. Cook 2 Bridgman, MI Indiana Michigan Power Company Severe Weather 11/01/2014 Scram 5 days 1077Indian Point 3 Buchanan, NY Entergy Nuclear Operations Cold/Icing 01/08/2015 Power Reduction 3 hours 1085Pilgrim Plymouth, MA Entergy Nuclear Operations Winter Storm 01/27/2015 Scram 12 days 677Pilgrim Plymouth, MA Entergy Nuclear Operations Winter Storm 02/15/2015 Shutdown 3 days 677Byron 1 Byron, IL Exelon Cold/Icing 03/03/2015 Scram 6 days 1164

Pilgrim Plymouth, MA Entergy Nuclear Operations UHS Temp 08/09/2015 Power Reduction 26 minutes 677

July 20, 26, 27, 28 and August 7 *

**There were no events that met 

the criteria between October 25, 2005 and August 2007