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2011 International Wind Diesel Conference Electric Vehicles in SmartGrids Jito Coleman TDX Power

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2011 International Wind Diesel Conference Electric Vehicles in SmartGrids Jito Coleman TDX Power Slide 2 2011 International Wind Diesel Conference 3/8/11 WHY EV? Efficient transportation Renewables displace fuel Good for SmartGrids Dispatchable Load Electrical Storage EVs are comings Light duty cars and trucks 4 wheelers Snowmobiles ? Slide 3 2011 International Wind Diesel Conference 3/8/11 EV Mileage 20 KWH Battery 70 mile range: 2/10 kW Charger EV or PHEV - Light Duty Fleet - 3.5 miles / kwh Diesel Genset - 12-15 kwh / gallon EV equivalent mileage 40 - 50 mpg Slide 4 2011 International Wind Diesel Conference 3/8/11 Electric 4-Wheelers Slide 5 2011 International Wind Diesel Conference 3/8/11 Electric 4 Wheeler on St. Paul Slide 6 2011 International Wind Diesel Conference 3/8/11 EV Battery Needs Opportunistic Charging Slow charging immediately after use Key to battery life Dual Rate Charging High - 240 V 2 hours Slow - 120 V 12 hours Slide 7 2011 International Wind Diesel Conference 3/8/11 EV Value in SmartGrids Dispatchable Load Energy Storage Stability - Seconds Spinning Reserve - Minutes Load Shifting - Hours Slide 8 2011 International Wind Diesel Conference 3/8/11 Dispatchable Load Value EPRI: 75% battery value for SmartGrids is as dispatchable load. Requires Standard on-board vehicle chargers Controlled charger sites Communications or Frequency Control at site Slide 9 2011 International Wind Diesel Conference 3/8/11 Electrical Storage Stability and Spinning Reserve Bi-Directional Charger (Not Main stream) Remote control Battery life issues Secondary Number of EVs plugged in State of battery charge User preferences Slide 10 2011 International Wind Diesel Conference 3/8/11 Electrical Storage Kempton et al U of Delaware Slide 11 2011 International Wind Diesel Conference 3/8/11 Electrical Storage Load Shifting Bi-directional charger 50% of value as dispatchable load Bigger battery life issue Smaller value proposition Bigger social issue Slide 12 2011 International Wind Diesel Conference 3/8/11 Questions for Isolated Grids Can they leverage higher renewable contribution? How will they compare to batteries, flywheels, ultra caps ? Is there financial leverage? What impact from social issues?