NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 30 OATT Attachment X - Standard Large Facility Interconnecti --> 30.12 OATT Att X Construction of Connecting Transmission Own
The Connecting Transmission Owner and the Developer shall negotiate in good faith concerning a schedule for the construction of the Connecting Transmission Owner’s Attachment Facilities and the System Upgrade Facilities and the System Deliverability Upgrades. If the System Upgrade Facilities or System Deliverability Upgrades involve Affected Transmission Owners, the Developer must execute and fulfill agreement(s) with the ISO and the Connecting Transmission Owner and any Affected Transmission Owner to cover the engineering, procurement and construction of such upgrades.
In general, the In-Service Dates of the Developers in each Class Year seeking interconnection to the New York State Transmission System will determine the sequence of construction of System Upgrade Facilities and System Deliverability Upgrades.
A Developer with a Standard Large Generator Interconnection Agreement, in order to maintain its In-Service Date, may request that the Connecting Transmission Owner advance to the extent necessary the completion of System Upgrade Facilities, and System Deliverability Upgrades that: (i) were assumed in the Interconnection Studies for such Developer, (ii) are necessary to support such In-Service Date, and (iii) would otherwise not be completed, pursuant to a contractual obligation of an entity other than the Developer that is seeking interconnection to the New York State Transmission System, in time to support such In-Service Date. Upon such request, Connecting Transmission Owner will use Reasonable Efforts to advance the construction of such System Upgrade Facilities and System Deliverability Upgrades to accommodate such request; provided that the Developer commits in writing to pay Connecting Transmission Owner any associated expediting costs.
A Developer with a Standard Large Generator Interconnection Agreement, in order to maintain its In-Service Date, may request that the Connecting Transmission Owner advance to the extent necessary the completion of System Upgrade Facilities and System Deliverability Upgrades that: (i) are necessary to support such In-Service Date and (ii) would otherwise not be completed, pursuant to an expansion plan of the NYISOISO or Connecting Transmission Owner, in time to support such In-Service Date. Upon such request, Connecting Transmission Owner will use Reasonable Efforts to advance the construction of such System Upgrade Facilities and System Deliverability Upgrades to accommodate such request; provided that the Developer commits in writing to pay Connecting Transmission Owner any associated expediting costs.
An Interconnection System Reliability Impact Study will be amended to determine the facilities necessary to support the requested In-Service Date. This amended study will include those transmission and Large Generating Facilities that are expected to be in service on or before the requested In-Service Date.
The ISO shall, upon the request and at the expense of the Developer, in conjunction with the Connecting Transmission Owner, perform operating studies to determine the extent to which the Developer’s Large Generating Facility and the Developer’s Attachment Facilities may operate prior to the completion of the Connecting Transmission Owner’s Attachment Facilities or System Upgrade Facilities or System Deliverability Upgrades consistent with Applicable Laws and Regulations, Applicable Reliability Standards, and Good Utility Practice. This provision does not permit the Developer to request the evaluation of an alternative configuration of the proposed Large Generating Facility; rather, this provision merely allows the Developer to request an evaluation of the extent to which its Large Generating Facility may operate, if at all, prior to the completion of all required upgrade facilities. This provision does not permit the Developer to operate the Developer’s Large Generating Facility and the Developer’s Attachment Facilities in accordance with the results of such studies. Such requirements must be documented in the Large Facility’s Interconnection Agreement, which must be fully executed or filed unexecuted and accepted by the Commission prior to the Large Facility going into Commercial Operation. Such requirements must also have a defined end date specified in the Interconnection Agreement – the date beyond which Limited Operations is not permitted.
Effective Date: 12/16/2017 - Docket #: ER18-80-000 - Page 1