1. Leading the Way in Electricity SM PLUG-IN ELECTRIC VEHICLE READINESS SOUTHERN CALIFORNIA EDISON Doug Kim, Director – PEV Readiness August 6, 2010 Plug-in Electric Vehicle Readiness Single-Family Residential Charging

2. Leading the Way in Electricity SM PLUG-IN ELECTRIC VEHICLE READINESS SOUTHERN CALIFORNIA EDISON 1 Understanding PEV Owner Charging Source: Electric Power Research Institute Preferred Charging Locations 240 Volt Appliances in Home Access to 120 Volt, 3-prong Outlet

3. Leading the Way in Electricity SM PLUG-IN ELECTRIC VEHICLE READINESS SOUTHERN CALIFORNIA EDISON 2 Residential Charging Equipment Installation 2 32 – 50 days – 1/3 SCE – 2/3 Customer, Electrician & City Sequential process with many opportunities to drop the ball between various parties Rate selection drives hardware configuration 1- to 2-week target* Core PEV team to monitor & coordinate Minimize downtime Align processes with autos’ charging equipment installers Improve permitting and inspection process 2- to 3-day goal* Edison SmartConnect TM may provide additional channel for EV load measurement Ideally, electricians could handle entire customer experience STATUS QUOSTREAMLINEDTECH SOLUTION Q4 20102015? * Installation timeline targets & goals dependent on developments outside utility control Better coordination between parties can speed up installation process and lower cost to customers

4. Leading the Way in Electricity SM PLUG-IN ELECTRIC VEHICLE READINESS SOUTHERN CALIFORNIA EDISON 3 Streamlining with OEMs and Third Parties Direct PEV customers to utility for rate & service information Consider rate implications in home upgrade quotes Coordinate home audit and installation process Develop best practices and common “rules of engagement” PEV Ecosystem Trade Associations/ NGOs Standards Organizations Local Government & Communities State Government/ Agencies Customers Charging Equipment Manufacturers Equipment Installation Providers Charging Stations Operators Utilities Car Manufacturers (OEM) OEMs Third Parties