IEEE Transactions on Power Delivery | Year: 2013
The main purpose of this series of papers is to provide methodology and best business practices to assess the risk posed by geomagnetic disturbances. This paper addresses the methodology used by Dominion Virginia Power to model geomagnetically induced currents. An extreme 100-year geoelectric-field scenario is utilized as a baseline. The impact of topology changes in a large 497-bus system is investigated. Subsequent papers-Parts II and III-will address transformer vulnerability and system voltage stability, respectively. © 1986-2012 IEEE.
Astrolink International LLC and Dominion | Date: 2015-05-23
A method and system for providing a secure communication network using an electrical distribution grid is disclosed. A device connected to the electrical distribution grid initiates a request for a secured key token by signaling an intelligent communicating device residing at or near an edge of the grid. The intelligent communicating device forwards the request to a receiver at a distribution substation on the electrical grid. This receiver enhances the properties of the request such that a grid location for the request can be inferred. The enhanced request is forwarded to a server at the distribution substation, which compares the request grid location to a Grid Map and Policies of known secure grid locations. Any inconsistencies between the grid location inferred from the enhanced request and the Grid Map and Policies locations are considered evidence of tampering, and the server rejects the request.
Dominion | Date: 2015-02-27
A method of downloading an electronic product to a pin-pad terminal involves the terminal transmitting to a network gateway a transaction proposal for an electronic product from a network device, and receiving from the gateway a transaction proposal response generated by the gateway in response to the transaction proposal. The transaction proposal response includes a transaction pointer associated with the electronic product. An electronic cash register receives an indication of a proposed payment amount for the electronic product. The pin-pad terminal receives from the electronic cash register confirmation of entry of the electronic product in an electronic shopping basket maintained by the electronic cash register. The terminal validates the confirmation of entry of the electronic product from a comparison with the transaction proposal response, and transmits the transaction pointer to the network device via the gateway. The terminal receives the electronic product from the network device via the gateway.
Dominion | Date: 2015-03-12
A method of authorizing a debit transaction involves a server receiving from a debit terminal a message requesting authorization for a debit transaction. The message includes a credential provided by a payment token interfaced with the debit terminal. The credential is uniquely associated with the token. The server is in communication with a payment definition database that associates a plurality of payment credentials each with a respective financial account and a default payment amount. The server determines the financial account and the default amount by querying the database with the received credential. Particulars of the determined financial account and default amount are indeterminable from only the credential. The server authenticates the message and facilitates a debit in the default amount from the financial account. The server performs the receiving, determining, authenticating and facilitating all without confirmation of authentication of a bearer of the token.
Dominion | Date: 2015-07-17
A method and system for recommending a physical location at which to complete an electronic activity are disclosed. In some examples, initiation of the electronic activity by a user at a first physical location is detected, that the electronic activity is to be completed at a physical location different from the first physical location at least in part because completion of the electronic activity requires the user and one or more other parties is determined, one or more portions of the electronic activity that remain incomplete are determined, a second physical location at which to complete the one or more incomplete portions of the electronic activity is identified, and information about the electronic activity is provided to the one or more other parties.