Generation Interconnection Procedures
Generation Interconnection Procedures
Generator Interconnection Procedures
The following procedures, agreements and forms are required to initiate the various interconnection studies and processes required through NSP's Generator Interconnection Procedures. All completed forms should be sent to: Nova Scotia Power Inc. Interconnection Engineer can be reached at: (902) 717-6613 |
Notices
Please be advised of the following notices: 1. 2. 3. To be eligible for inclusion in the Interconnection System Impact Study stage, and thereby advance the Interconnection Request’s initial Queue Position, the Interconnection Customer must meet the progression milestone requirements of Section 7.2 of the GIP at least ten (10) Business Days prior to the Interconnection System Impact Study commencement date. For clarity, item 7.2 (i) – provision of a detailed stability model for the generator(s) shall mean:
NSPI-TPR-015-2: PSSE and PSCAD Model Requirements and NSPI-TPR-014-1: Model Quality Testing will undergo revision as the grid evolves and performance criteria changes. The most up to date version will be provided as they become available. 4. 7.6.7. Inertia Response - WECS WECS Generating Facilities shall provide inertia response equivalent to a Synchronous Generator with a synchronous condenser, with rated MVA as a percentage of the rated MW of the associated WECS. The scaling factor is dependent on POI voltage. Support can be from a device other than a synchronous condenser if equivalent SCMVA support can be demonstrated. Facilities adjacent to existing IBR facilities that do not have additional inertia support or in extremely weak areas of the grid may require greater inertial support and/or have turbines with a very low SCR requirement for ride through. The SIS will determine the total inertial response required to meet performance requirements. WECS turbines shall support over frequency deviations with a power boost (virtual inertia response) for at least 10 seconds and, where headroom exists, shall offer over-frequency and under-frequency control with a deadband of +/- 0.2 Hz and a droop characteristic of 4%. The following table is in effect starting from SIS Round 30:
Example: 100MW WECS with 138kV POI will require, at a minimum, a synchronous condenser with an MVA rating of at least 60 MVA. *End of Notice* |
Transmission Interconnection Procedures (Applicable to transmission systems 69,000 volts and higher)
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Generation Interconnection Procedure (GIP) Study Calendar
Interconnection Request Queue
Distribution Generator Interconnection Procedures (Applicable to distribution systems 26,400 volts and lower)
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Distribution Generation Interconnection Procedure (DGIP) Study Calendar
Technical Requirements for Transmission and Distribution Interconnected Generators
PSS®E and PSCADTM Model Requirements
The information on this page has been updated on July 17, 2024
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