Palo Verde Nuclear Generating Station. Asset to Arizona and the entire Southwest. Mark Fallon Director, Communications

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1 Palo Verde Nuclear Generating Station Asset to Arizona and the entire Southwest Mark Fallon Director, Communications

2 2 Today at Palo Verde

3 Nuclear Security

4 SECURITY: Layer-upon-layer of protection 4,050 5 Acres or 6.6 square miles

5 6 Pressurized Water Reactor How Palo Verde s Pressurized Water Reactors (PWRs) Work

6 Tour Pre-Job Briefing Clothing and Footwear Visitor and Escort Responsibilities Take signed forms with you Safety Eyes on Path Refrain from Touching, be aware of body positioning Call 4444 in case of emergency or if separated from escort Personal Protective Equipment Hardhat Hearing Protection Safety Glasses 7

7 Palo Verde Nuclear Generating Station Asset to Arizona and the entire Southwest Jack Cadogan Senior Vice President, Site Operations

8 Global Energy Demand World energy consumption will increase 56% by 2040! U.S. Energy Information Administration

9 Pyongyang North Korea Seoul South Korea 1.6 billion people a quarter of humanity live without electricity

10 Sources of U.S. Electricity Generation Renewables 7% Hydro 6% Oil / Other 1% Coal 33% Nuclear 20% Natural Gas 33% 2015 Source: Energy Information Administration 12

11 California Hourly Electric Load vs. Load Less Solar and Wind Duck Curve (Oct. 22, 2016) 13

12 Nuclear Energy s Extraordinary Value 1. Efficient One uranium fuel pellet creates as much energy as one ton of coal or 17,000 cubic feet of natural gas. 2. Available A nuclear plant refuels once every 18 months, in spring or fall, replacing one-third of the fuel each time. 3. Reliable Nuclear power plants are the most efficient source of electricity, operating 24/7 at a 92% average capacity factor. 4. Clean Nuclear energy is a critical part of the U.S. and world carbon-free generation portfolio. 14

13 Without nuclear power providing carbon-free energy, states would find it difficult, if not impossible to meet ambitious federal clean energy goals in coming decades. Study by The Horinko Group; a Washington, D.C.-based environmental consulting firm

14 U.S. NUCLEAR PLANTS PRODUCE 63% OF OUR COUNTRY S CARBON-FREE ELECTRICITY Without nuclear power, CO 2 emissions from the U.S. electric sector would be approximately 25% higher. In California, CO 2 emissions have increased more than 8 million tons per year since the closure of the San Onofre Nuclear Generating Station. Sources: Breakthrough Institute; U.S. Environmental Protection Agency; Nuclear Energy Institute

15 Clean Air Energy Palo Verde produces 80% of Arizona s carbon free electricity Source: CASEnergy Coalition 17

16 Cost and Carbon Dioxide Emissions Relative Costs Solar PV Nuclear Nuclear energy effectively competes with fossil fuels despite historic lows of natural gas without pricing volatility, environmental impact of greenhouse gases, or government subsidies. Coal Wind Natural Gas Carbon Dioxide Emissions (CO 2 lbs per MWH) Source: Energy Information Administration, Lightbridge 18

17 U.S. Capacity Factors (carbon-free sources) Nuclear 92.2 Hydro 35.9 Wind 32.5 Solar Photovoltaic Source: Nuclear Energy Institute / Energy Information Administration, 2015 data 19

18 PALO VERDE FACTS: Palo Verde is operated by APS. Palo Verde is a valuable carbon-free asset to Arizona and the entire Southwest. The nation s largest power producer for 24 consecutive years. Palo Verde s units currently licensed to operate through 2047, with the option preserved for operation through Palo Verde uses creative technology to conserve valuable Southwest water resources % 17.49% 15.80% 15.80% 10.20% 5.91% 5.70% 20

19 21 Conserving Water Unlike other sites, Palo Verde has no lake, ocean or river, so treated wastewater is utilized to cool the plant.

20 85-acre Reservoir 45-acre Reservoir Underground Pipeline Delivers effluent to Palo Verde 22

21 Used Fuel Storage After 4.5 years, fuel assemblies are removed from the reactor and moved under water into the used fuel pool. Assemblies are stored in racks for about 7-10 years before being moved into Dry Cask Storage. 23

22 Safe and Secure Dry Cask Storage Dual Canister Lids (steel/concrete shield plug and carbon steel plate) Welded Dual Canister Lids Fuel Assemblies (24 total) Vertical Concrete Canister (Aggregate concrete reinforced with steel rebar) 138 total casks stored on site as of October 2016 Dual Purpose Transportable Storage Canister (stainless steel) 24

23 Palo Verde Economic Impact More than $1.8 billion in Arizona Source: Economic Impacts of Palo Verde, Applied Economics, May

24 COST EFFECTIVE RELIABLE CARBON-FREE Palo Verde is critical to the electrical generation mix of today and the future for Arizona and the Southwest 26