rnpps resilient Nuclear Power Plants Enhancing the Value Proposition of Nuclear Energy

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1 rnpps resilient Nuclear Power Plants Enhancing the Value Proposition of Nuclear Energy Sherrell R. Greene, President Advanced Technology Insights, LLC From hindsight to foresight through insight. presented at NIC/ETEC Nuclear Suppliers Workshop Oak Ridge, Tennessee 7 September 2017

2 Nuclear Power s value proposition must improve if it is to remain a major energy source in the 21st century. It is no longer sufficient simply to provide cost-competitive baseload electricity Sherrell R. Greene NIC/ETEC Nuclear Suppliers Workshop 6-7 Sep

3 Electricity is lynchpin of all Critical Infrastructure Chemical Commercial Facilities Communications Critical Manufacturing Dams Defense Industrial Base Emergency Services Energy Financial Services Electricity Food & Agriculture Government Facilities Health Care & Public Health Information Technology Nuclear Reactors, Materials, and Waste Transportation Water & Wastewater Systems 2017 Sherrell R. Greene NIC/ETEC Nuclear Suppliers Workshop 6-7 Sep

4 NPPs must evolve and so must our thinking From being simply - safe, reliable, and efficient sources of baseload electricity To being - enablers of a resilient Grid and Critical Infrastructure 2017 Sherrell R. Greene NIC/ETEC Nuclear Suppliers Workshop 6-7 Sep

5 rnpps Some Terminology Resilience: the ability of a system to withstand a change or a disruptive event by reducing the initial negative impacts (absorptive capability), by adapting itself to them (adaptive capability) and by recovering from them (restorative capability Electric Grid Resilience: the system s ability to minimize interruption of electricity flow to customers given a specific load prioritization hierarchy resilient Nuclear Power Plant: a nuclear power plant whose performance attributes and functionalities enable and enhance electric Grid resilience 2017 Sherrell R. Greene NIC/ETEC Nuclear Suppliers Workshop 6-7 Sep

6 The two key attributes of rnpps are: rnpp Attribute 1: rnpps enable the electric Grid to absorb and adapt to a broad spectrum of Grid anomalies and upsets rnpp Attribute 2: rnpps enhance the Grid s ability to quickly recover from upsets, and to restore electric service in a manner consistent with the system operator s load prioritization hierarchy Sherrell R. Greene NIC/ETEC Nuclear Suppliers Workshop 6-7 Sep

7 The Six Functional Requirements of rnpps are: 1. Immunity to damage from external events 2. Unlimited independent shutdown cooling capability 3. Robust load following capability 4. Ability to avoid plant shutdown in response to Grid anomalies 5. Ability to operate in Island Mode 6. Self-cranking Blackstart Capability 2017 Sherrell R. Greene NIC/ETEC Nuclear Suppliers Workshop 6-7 Sep

8 Several design features might enable rnpps DC-DC rnpp-grid interfaces Modularity Small reactor size Non-traditional cranking power supplies Adaptive turbine-generator systems Right-sized condenser systems Robust nuclear fuels 2017 Sherrell R. Greene NIC/ETEC Nuclear Suppliers Workshop 6-7 Sep

9 rnpps could transform value proposition of nuclear energy Enable dispatch beyond baseload Enable greater use of renewables Enable more resilient electric Grid Provide fuel-secure Grid Blackstart Capability Anchor Resilient Critical Infrastructure Islands Will we rise to the challenge? 2017 Sherrell R. Greene NIC/ETEC Nuclear Suppliers Workshop 6-7 Sep

10 Q&A Backup 2017 Sherrell R. Greene NIC/ETEC Nuclear Suppliers Workshop 6-7 Sep

11 Bottoms-up Grid recovery process relies on Blackstart Units Secure Load Blocks L L L L x B Blackstart Generating Unit (Hydro, CT) Cranking Transmission Line ~ Power Plant Cranking Transmission Line ~ Power Plant Cranking Transmission LineNPP Intertie Note: EXTREME simplification 2017 Sherrell R. Greene NIC/ETEC Nuclear Suppliers Workshop 6-7 Sep

12 rnpps could anchor Resilient Critical Infrastructure Islands (RCIIs) Resilient Critical Infrastructure Island (RCII) Ring Bus rnpp Thermal Storage Ring Header Critical Infrastructure Facilities Flow of Essential Resources, Products, and Services 2017 Sherrell R. Greene NIC/ETEC Nuclear Suppliers Workshop 6-7 Sep