The UAMPS Carbon Free Power Project with NuScale SMR Technology Colorado Rural Electric Association Energy Innovations Summit September 12, 2016 Utah Associated Municipal Power Systems (UAMPS) Ted Rampton

Description of UAMPS UAMPS is an Energy Services Interlocal Agency –Created in 1980 under State of Utah statutes –45 members in 7 Western states Most are municipal electric utilities Offer an array of various services and projects –Members are able to choose which projects they wish to participate »They are free to develop their own projects w/o the group

UAMPS Organization Project-Based –17 projects of various categories Energy Services –Assist members in their energy needs Not-for-Profit

UAMPS Existing Resources Coal –Intermountain Power Project 253 MW –Hunter II 65 MW –San Juan 35 MW Natural Gas145 MW Hydro300 MW Renewable 98 MW Member Internal Generation184 MW Market (mostly sourced from Coal/NG) 390 MW

UAMPS Resource Locations

Carbon emitting resources=Regulatory Risk

UAMPS’ Concerns Load growth –Approximately two percent per year Future of Coal fueled generation –Clean Air Act –Clean Power Plan Future of power market –Independent System Operators (ISOs) and Energy Imbalance Markets (EIMs)CALISO –Derivative of coal fueled generation Future of natural gas fueled generation –What is the end-goal for C02 reduction? –Fuel price volatility 13

Carbon Free Power Project Energy Efficiency Small Modular Reactors Rooftop Solar and other distributed generation

CFPP Site Selection Objective & Methodology Objective of the Siting Study is to identify a nuclear power plant site that: 1) meets UAMPS’ needs, 2) satisfies applicable Nuclear Regulatory Commission (NRC) site suitability requirements, and 3) is consistent with National Environmental Policy Act (NEPA) requirements regarding the consideration of alternative sites. 9

Idaho National Laboratory Site August A preferred site has been selected within the INL property

Why INL Site? Community – Experience and knowledge of nuclear development Experience workforce Site data requirements – Numerous studies and data collection for NRC Location near UAMPS members Existing infrastructure Readily available land and resources Electrically sound – Transmission availability to members Adds system balance and integrity to region

INL Site Use Agreement UAMPS and DOE has entered into a use agreement February 2016 Use agreement would serve as the vehicle to allow UAMPS to explore certain sites at INL and ultimately construct, operate, and decommission the project subject the completion of NEPA. – August A preferred site has been selected within the INL property

Capabilities of the NuScale SMR Design NuScale SMR technology appears to fill many needs –Safe –Baseload –Extremely reliable –Flexible Resource - Assist in the integration of renewables

Overall UAMPS CFPP Project Schedule Project Development (see detail) Operations 33 Licensing Construction and Fabrication Design & Engineering Site Characterization Start COLA Submit COLA NRC Issue COL Submit DCA NRC Issue DC Draft DSRS Final DSRS Module 12 COD Start Operational Readiness Program Complete Operational Readiness Program Module 1 COD Operator Training Program Accreditation Start Finalized Plant Design Complete Final Plant Design Reference Plant Design Install Module 12 Install Module 1 Start Module Fabrication Order Modules Site Selection Site Use Agreements Define Team Members and structure Develop Business Model Onboard Partners Site Prep & Mobilization 1 st Fuel load 1st Safety Concrete Pour NPM Fabricator

What is a NuScale Power Module? A NuScale Power Module (NPM) includes the reactor vessel, steam generators, pressurizer and containment in an integral package that eliminates reactor coolant pumps and large bore piping (no LB-LOCA) Each NPM is 50 MWe and factory built for easy transport and installation Each NPM has its own skid-mounted steam turbine-generator and condenser  Each NPM is installed below-grade in a seismically robust, steel- lined, concrete pool  NPMs can be incrementally added to match load growth - up to 12 NPMs for 600 MWe gross (~570 net) total output

Size Comparison

Coolant Flow Driven By Physics Convection – energy from the nuclear reaction heats the primary reactor coolant causing it to rise by convection and natural buoyancy through the riser, much like a chimney effect Conduction – heat is transferred through the walls of the tubes in the steam generator, heating the water (secondary coolant) inside them to turn it to steam. Primary water cools. Gravity – colder (denser) primary coolant “falls” to bottom of reactor pressure vessel, cycle continues

NuScale SMR Safety Performance  NuScale design has achieved the “Triple Crown” for nuclear plant safety. The plant can safely shut- down and self-cool, indefinitely, with:  No Operator Action  No AC or DC Power  No Additional Water  Safety valves align in their safest configuration on loss of all plant power.  Details of the Alternate System Fail-safe concept were presented to the NRC in December 2012.

Reactor Building Cross Section

Site Overview annex building warehouse cooling towers A cooling towers B reactor building administration building radwaste building switchyard turbine building B ISFSI (dry cask storage) turbine building A parking control building protected area fence 34.5 acres (~14 hectares) within the protected area fence

NuScale Differentiators NuScale Power Module  If power is lost:  Indefinite cooling w/o operator action, w/o water addition, w/o power  NPM integrates RPV and CV in one factory-built component  One-third scale prototype operational since 2003  Extensive testing program, >230 patents (as of 1/16)  Full-scale control room simulator since 5/2012  NRC pre-app engagement since April 2008  NPM shippable by common modes of conveyance  Underground, immersed in UHS common pool  50 MW incrementally scalable modules  Reactor Coolant Pumps: NONE  coolant circulates by natural physics: convection, conduction, and gravity

No party shall rely on the information contained in this presentation or statements made by the presenter of this presentation. To the maximum extent permitted by law, the presenter, UAMPS and their respective affiliates disclaim any and all liability in the event any information, commentary, analysis, opinions in this presentation prove to be inaccurate, incomplete or unreliable, or result in any investment or other losses. 22 Disclosure Notice

Ted Rampton General Manager UAMPS CFPP