ISO New England Operating Procedure No. 12 Appendix D: Voltage Schedule Annual Transmittal Form Response


Please refer to the OP12D PDF letter for the asset’s Generator Option Type classification, as well as the asset’s voltage schedule information. Feel free to email vtfcontact@iso-ne.com with any questions or issues with the OP12D web form.

1.  Confirm that the voltage schedule and associated tolerance band are acceptable.

2.  If the voltage schedule and the associated tolerance band are confirmed to be acceptable, then:

    a.  Provide these voltage schedules and requirements information to the entity that controls or operates (either remotely or locally) the voltage control equipment for the Generator Asset described in this letter.

    b.  Confirm that the entity that controls or operates (either remotely or locally) the voltage control equipment for the Generator Asset has incorporated these voltage schedules and requirements information into its operating procedures.

3.  The NX-12D form shall be completed according to the instructions in OP-14B. Confirm information in the NX-12D form and update the following information in the NX-12D form if necessary:

    a.  Voltage schedules – The voltage schedules shall match the provided schedule on this OP-12D form.

    b.  High Side Visibility – This field shall reflect if the Generator Asset has visibility of the bus voltage that is of the same voltage class as its voltage schedule.

1.  Confirm that the voltage schedule and associated maximum and minimum values are acceptable.

2.  If the voltage schedule and associated maximum and minimum values are confirmed to be acceptable, then:

    a.  Provide these voltage schedules and requirements information to the entity that controls or operates (either remotely or locally) the voltage control equipment for the Generator Asset described in this letter.

    b.  Confirm that the entity that controls or operates (either remotely or locally) the voltage control equipment for the Generator Asset has incorporated these voltage schedules and requirements information into its operating procedures.

3.  Confirm information in the NX-12D form and update the NX-12D form if necessary. The NX-12D form shall be completed according to the instructions in OP-14B. Confirm, and if necessary, update the following information:

    a.  Voltage schedules – The voltage schedules shall match the provided schedule on this OP-12D form.

    b.  High Side Visibility – This field shall reflect if the Generator Asset has visibility of the bus voltage that is of the same voltage class as its voltage schedule.