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

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Presentation on theme: "2011 International Wind Diesel Conference Electric Vehicles in SmartGrids Jito Coleman TDX Power."— Presentation transcript:

1 2011 International Wind Diesel Conference Electric Vehicles in SmartGrids Jito Coleman TDX Power

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 ?

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 miles / kwh Diesel Genset kwh / gallon EV equivalent mileage mpg

4 2011 International Wind Diesel Conference 3/8/11 Electric 4-Wheelers

5 2011 International Wind Diesel Conference 3/8/11 Electric 4 Wheeler on St. Paul

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 V 2 hours Slow V 12 hours

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

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

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 EV’s plugged in State of battery charge User preferences

10 2011 International Wind Diesel Conference 3/8/11 Electrical Storage Kempton et al U of Delaware

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

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?


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