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Electric Vehicles in SmartGrids

Electric Vehicles in SmartGrids. Jito Coleman TDX Power. 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 ?.

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Electric Vehicles in SmartGrids

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  1. Electric Vehicles in SmartGrids Jito Coleman TDX Power

  2. 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. EV Mileage20 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

  4. Electric 4-Wheelers

  5. Electric 4 Wheeler on St. Paul

  6. 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

  7. EV Value in SmartGrids • Dispatchable Load • Energy Storage Stability - Seconds Spinning Reserve - Minutes Load Shifting - Hours

  8. 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. 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. Electrical Storage Kempton et al U of Delaware

  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. 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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