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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

Electric Vehicles in SmartGrids

Jito Coleman

TDX Power

why ev
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 ?
ev mileage 20 kwh battery 70 mile range 2 10 kw charger
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

ev battery needs
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

ev value in smartgrids
EV Value in SmartGrids
  • Dispatchable Load
  • Energy Storage

Stability - Seconds

Spinning Reserve - Minutes

Load Shifting - Hours

dispatchable load value
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
electrical storage
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
electrical storage10
Electrical Storage

Kempton et al U of Delaware

electrical storage11
Electrical Storage
  • Load Shifting
    • Bi-directional charger
    • 50% of value as dispatchable load
    • Bigger battery life issue
    • Smaller value proposition
    • Bigger social issue
questions for isolated grids
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?