Implementation Status of Fukushima Lessons Learned at Duke Energy - PowerPoint PPT Presentation

Implementation Status of Fukushima Lessons Learned at Duke Energy Bill Pitesa � Senior Vice President and Chief Nuclear Officer FEBRUARY 16, 2017

Key Messages � Duke Energy sites are prepared to mitigate a Fukushima- type event � Substantial resources allocated to ensure timely and comprehensive implementation of Fukushima response actions � Duke Energy is committed to completion of remaining Fukushima response actions and implementation of Mitigation Beyond Design Basis Events (MBDBE) rule 2

Fukushima Response Status FLEX and Spent Fuel Pool Level Instrumentation (SFPLI) Orders fully implemented � Significant improvement in safety � Maintenance and testing programs established for FLEX equipment and SFPLI � Mitigating strategies integrated into operator training programs � Investment of $432 million and 3.3 million work-hours 3

Fukushima Response Status Brunswick is on track to implement Hardened Vent Order � Wetwell venting system installation to be completed in Unit 2 by March 2017 and in Unit 1 by March 2018 � Severe accident water management strategies for both units completed by March 2019 � Significant improvement in safety when completed � Investment of $25 million and 161 thousand work-hours 4

Fukushima Response Status � Purchased equipment to ensure site can FLEX storage building withstand ELAP and LUHS events CAT 924 - Debris removal FLEX Boration Skid NSRC - Cooling Water supply pump � Established two National � Completed modifications to SAFER Response Centers comply with FLEX and SFPLI NSRC - Power distribution trailer loaded Orders 5

Fukushima Response Status � Validated strategies via analysis and on-site personnel exercises Harden vent piping Wetwell purge piping � Created and updated procedures Testing of Hale Pump CAT Diesel Generators FLEX Pump � Trained Operations, Maintenance, Radiation Protection, Engineering and Emergency Response Organization personnel 6

Fukushima Response Status Key Information Requests and Evaluations Status Emergency Preparedness Complete Seismic and Flood Walkdowns Complete Seismic and Flood Reevaluation Complete Additional Seismic Evaluations, Including MSA On Schedule – 2017 Seismic Probabilistic Risk Assessment, includes MSA On Schedule – March 2019 for Oconee and Robinson Flood MSA On Schedule – 2018 On Schedule – 2018 Flood Focused Evaluations/Integrated Assessment � Investment of $99 million and 750 thousand work-hours 7

Summary � Significant reduction in INVESTMENT BREAKDOWN overall plant risk Flood EP & (7%) MBDBE � Industry exploring ways to Rule Seismic (2.4%) (11%) leverage FLEX equipment Vents � For the final chapter, Duke (4%) FLEX & SFPLI Energy is committed to (75.6%) completing MBDBE Rule implementation Total Investment - $570 million* * excluding MSA mods 8

Acronyms CAT Caterpillar ELAP Extended Loss of Alternating-Current Power EP Emergency Preparedness FLEX Diverse and flexible coping strategies LUHS Loss of Ultimate Heat Sink MBDBE Mitigation Beyond-Design-Basis Events MSA Mitigating Strategies Assessment NSRC National SAFER Response Center SAFER Strategic Alliance for FLEX Emergency Response SFPLI Spent Fuel Pool Level Instrumentation 9

Implementation Status of Fukushima Lessons Learned at Duke Energy - PowerPoint PPT Presentation

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