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Systems and methods for prepaid electric metering for vehicles

  • US 8,583,551 B2
  • Filed: 12/22/2008
  • Issued: 11/12/2013
  • Est. Priority Date: 12/22/2008
  • Status: Active Grant
First Claim
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1. A method for delivering energy to an electric vehicle, said method comprising:

  • identifying, by an energy point server system, the electric vehicle at an energy delivery point, wherein the electric vehicle is associated with a customer account;

    determining, by the energy point server system, a current balance of the customer account, wherein the current balance includes at least a portion of a prepayment amount based on a predetermined amount of energy to be delivered to the electric vehicle at the energy delivery point;

    delivering energy to the electric vehicle;

    metering, by the energy point server system and the electric vehicle, an actual amount of energy delivered to the electric vehicle;

    comparing the amount of delivered energy metered by the energy point server system and the electric vehicle;

    determining, by the energy point server system, a transaction amount based on a first billing rate for the actual amount of energy delivered to the electric vehicle at the energy delivery point;

    determining, by the energy point server system, whether the transaction amount exceeds the current balance of the customer account; and

    applying, by the energy point server system, a second billing rate for the actual amount of energy delivered to the electric vehicle when the transaction amount exceeds the current balance of the customer account.

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