National Town Meeting on Demand Response & Smart Grid – June 24, 2010 Presented by Tim Enwall EV Changes Two Games

EV Changes Two Games – 6/24/2010 P | 2 Company Confidential EV Game Changer #1 Necessitates Highly Orchestrated DR / DLC HVAC Pool R ELIABILITY E CONOMICS M ORE LOADS L ESS CONTROL M ORE VISIBILITY N EEDED ✚ Security Livelihood Economics Comfort Choice Water Heater

EV Changes Two Games – 6/24/2010 P | 3 Company Confidential Peak time discharge to the grid Peak time charge from storage Variability throttle EV charge Solar charge during day No EV charge storage Wind charge at night EV Game Changer #2 Enables Optimized Utilization of Renewable Resources

EV Changes Two Games – 6/24/2010 P | 4 Company Confidential Don’t forget your Customers Consumers will require… Undisputed “safe charge” Visibility and choice in coming events Consumers will want and value… “Set and forget” management rules Economical and eco-friendly solutions Energy brought to them Simple, accessible, actionable EV is a choice, but vehicles impact their life!

EV Changes Two Games – 6/24/2010 P | 5 Company Confidential To play BOTH Games requires… Interoperability between disparate systems Open, Standards-based systems and interfaces Platform solutions which: Support multiple applications Optimize for competing business objectives Active engagement with Consumers Dialog Actionable Information & Choice Utility and Consumer Control

EV Changes Two Games – 6/24/2010 P | 6 Company Confidential Regulatory / Policy Considerations Open standards Open access to information Dynamic pricing to provide market incentives

Thank-you!