HAN Use Case - Energy Storage and Generation

By Ricardo Thompson,2014-09-14 11:14
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    Use Case Energy Storage & Generation

    Consumer uses a storage or generation unit to provide energy to their home or the grid.


    The Energy Supplying Unit (ESU) connects with the premise Home Area Network (HAN), the Utility AMI system and the electric system (home, vendor or utility’s). The ESU identifies

    itself and the account it is associated with, and provides energy to the home or grid. This use case also describes the scenarios documented in The Sub Metering Use Case and The

    Load and Energy Management Use Cases, in that the ESU behaves according to these use cases.

Use Case Business Rules and Assumptions:

    See “HAN Use Case - General Definitions, Assumption, Actors.doc

Energy Supplying Unit (ESU) already contains energy.

    All utility safety measures and rules are in place to provide power to the grid.


See “HAN Use Case - General Definitions, Assumption, Actors.doc

    Energy Supplying Unit (ESU) can be an energy storage device (e.g., electric vehicle battery) or an energy generation device (e.g., photovoltaic array or backup generator).

Use Case Actors:

See “HAN Use Case - General Definitions, Assumption, Actors.doc

Actor Name Actor Type Actor Description

    Energy Supplying HAN device Stores or Generates Energy Unit (ESU)


Scenario (Power Upload)

    The following scenarios address storage and generation for the purpose of providing energy to the home or grid.

Triggering Primary Actor Pre-Condition Post-Condition Event

    Use Case Energy Storage & Generation

    Incentives or ESU The Installation Use Energy is utility Cases are successfully requirements are successfully transferred. in place for completed.

    providing energy to the home or The Registration Use grid. Cases are



    Units are transfer

    ready and properly


Steps for this scenario

    Step # Actor Description of the Step

    Signals ESU to transfer energy. 1 EMS, Utility, other entity,

    ESU (Consumer acts on

    EMS or ESU)

    Performs a self-check for sufficient capacity and 2 ESU generation readiness.

    Transfers energy. 3 ESU

    Signals to end transfer event. (e.g., due to drop in 4 EMS, Utility, other entity, price, inadequate energy availability, customer ESU (Consumer acts on preference, or utility preference) EMS or ESU)

    Ceases transfer of energy. 5 ESU

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