1. June 2009 1 Intelligently Connecting Plug-In Vehicles & the Grid

2. Discussion Guide Objective: Understand mutual business objectives surrounding smart charging solutions for electric vehicles. Plan: Introductions Review of Current PHEV/EV Plans GridPoint - Plug-In Vehicles & the Grid GridPoint – Smart Charging Demonstration Open Discussion / Next Steps 2

3. 3 Smart Grid At A Glance An intelligent network of distributed resources (at the point of consumption) that controls load, stores energy and produces power.

4. GridPoint Platform TM Web Interfaces GridPoint Customer Portal (consumer) GridPoint Control Console (utility) Web Modules Intelligent Energy Server Optimization Engine Energy Efficiency Load Management Renewables Integration EV Management Storage Optimization Communications Gateway GridPoint Web Services Integrated Services Architecture Metadata Scheduling Provisioning Business Intelligence Security API set Optimization Algorithms Data & User Scalability Modular Energy Solutions 3 rd Party Wireless Device SDKs Dynamic Web Engine Open Communications HAN/WAN/Meter Internal Utility Systems External Sources Data Integration MDMS SCADA LMP HAN Load Curves Weather

5. The Electric Vehicle Management Solution 5 Xcel Energy Seattle City Light Progress Energy Duke Energy ConEd BC Hydro PG&E Austin Energy ComEd Leading utility customers Two-years of real-world smart charging experience Hundreds of plug-in vehicles currently grid-aware via GridPoint technology Integrating with Level 1-3 charging infrastructure Idaho National Laboratorys (DOE) solution for EV / PHEV data capture Proven smart charging experience:

6. Electric Transportation Arriving Soon 6 Over 70% of auto makers * are introducing plug-in vehicles *by market share

7. Smart Charging: Manages the one-way flow of energy Allows drivers to set parameters Balances grid & driver needs via sophisticated software Enables adaptive management: -Delay/slow during peak demand -Increase with availability of renewable energy Establishing a Smart Grid Infrastructure for EVs 7 Plug-In Vehicles Connecting to the grid in 2010 Many rollouts call for 240V/L2 wall mounted garage chargers Adoption likely clustered in neighborhoods Grid Distribution System Charging management technology is required * Capacity exists for wide EV adoption * A few EVs, clustered & charging at peak, could impact reliability *National Renewable Energy Laboratory, Pacific Northwest National Laboratory, Electric Power Research Institute

8. Creating a Reinforcing Cycle of Benefits Smart Charging UTILITIES: Delays infrastructure investments Enhances reliability Increases renewable integration Delivers control of a valuable asset – load, storage & generation VEHICLE OWNERS : Reduces total cost of EV ownership Enhances ability to drive green Auto Manufacturers: Drives sales Creates a supportive EV ecosystem

9. Controlling the Power Flow to Vehicles 9

10. Enhanced Power Flow Management 10

11. One Example of ValueSmart Charging Used to Increase Renewable Integration

12. Load Shifting Time based management shifts charging behavior into non-peak periods Demand valleys can be filled by scheduling charging around a central time Load Shaping Following an signal or schedule, charging load can be dynamically shaped according to grid needs Renewable Integration Based on a live wind or solar signal, charging can be synchronized with the availability of renewable energy Spinning Reserves The flow of energy can be rapidly slowed or stopped, creating capacity in response to an unexpected power disruption Economic Dispatch Following a real-time price signal allows energy economics to determine charging behavior Smart Charging Management Opportunities Load Shaping Economic Dispatch

13. Advanced Analysis Supports complex performance evaluation, including MPG, fuel & energy consumption, charging data, etc. Improved Performance Data Data is automatically logged & securely uploaded, increasing reliability & enabling real-time evaluation Increased Flexibility Multiple methods of intra-vehicle & client/server communication are supported Remote software updates Staff involvement in data collection & administration is minimized with remote support & configuration Enduring Investment A second software license is all that's required to explore smart charging, no additional hardware is necessary State of the Art Performance Data Logging Used by Idaho National Laboratory, the same client-server solution that enables smart charging delivers robust performance capture

14. Proprietary & Confidential Smart Charging Demonstration

15. Preparing for Plug-Ins: What You Can Do Smart charging demonstrations are opportunities to: Assess the importance of controlling vehicle load at the distribution level Explore various charging scenarios, including load shaping & peak shaving Investigate synchronizing charging with wind or solar power Gain experience enlisting participation in smart charging programs Determine system requirements surrounding service area roaming Establish the benefits of electric vehicles, confirming efficiency, decreased fuel costs, reductions in green-house gas emissions, etc. How are you preparing for plug-ins? 15

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