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“4. Screening Criteria for Determining Grid Impacts

Secondary Screening Criteria

2. [SGC POSITION: FOR INTERCONNECTION OF A PROPOSED GENERATOR TO A SPOT NETWORK CIRCUIT, THE NEW UNIT IN AGGREGATE WITH OTHER GENERATION WILL NOT EXCEED 5% OF THE SPOT NETWORK’S MAXIMUM LOAD.]  [IP/NARUC POSITION: FOR INTERCONNECTION OF A PROPOSED GENERATOR TO THE LOAD SIDE OF SPOT NETWORK PROTECTORS, THE PROPOSED GENERATOR MUST UTILIZE AN INVERTER BASED EQUIPMENT PACKAGE AND, TOGETHER WITH THE AGGREGATED OTHER INVERTER-BASED GENERATION, WILL NOT EXCEED THE SMALLER OF 5% OF A SPOT NETWORK’S MAXIMUM LOAD OR 50 KW AND MUST COMPLY WITH ALL REQUIREMENTS OF IEEE P1547’S “INTERCONNECTION TECHNICAL SPECIFICATIONS AND REQUIREMENTS”.]

3. For the interconnection of a proposed generator to any network, the generator [SGC POSITION: WILL EITHER UTILIZE] [IP/NARUC POSITION: MUST UTILIZE A PROTECTIVE SCHEME THAT WILL ENSURE THAT ITS CURRENT FLOW WILL NOT AFFECT THE NETWORK PROTECTIVE DEVICES INCLUDING] reverse power relays or a comparable function [SGC POSITION: TO ENSURE THAT ITS CURRENT FLOWS CANNOT AFFECT NETWORK PROTECTIVE DEVICES]. [IP/NARUC POSITION: SYNCHRONOUS GENERATORS CANNOT BE INTERCONNECTEDINTO A SECONDARY NETWORK.]

4. [SGC POSITION: NOTWITHSTANDING SUBSECTION B. 3, FOR INTERCONNECTION OF A PROPOSED GENERATOR TO A SECONDARY GRID NETWORK WHOSE TOTAL NET GENERATING CAPACITY, IN AGGREGATE WITH OTHER EXPORTING GENERATORS INTERCONNECTED ON THE LOAD SIDE OF NETWORK PROTECTIVE DEVICES, WILL NOT EXCEED THE LESSER OF 10% OF THE MINIMUM ANNUAL LOAD ON THE NETWORK OR 500 KW.] [NARUC/IP POSITION: FOR INTERCONNECTION OF A PROPOSED GENERATOR THAT IS AN INDUCTION GENERATOR OR THAT UTILIZES INVERTER BASED PROTECTIVE FUNCTIONS, BOTH OF WHICH INCLUDE REVERSE POWER RELAY FUNCTIONS, THE GENERATOR’S TOTAL NET GENERATING CAPACITY, IN AGGREGATE WITH OTHER GENERATORS INTERCONNECTED ON THE LOAD SIDE OF NETWORK PROTECTIVE DEVICES, DOES NOT EXCEED THE LESSER OF 10% OF THE MINIMUM LOAD ON THE NETWORK OR 50 KW. A SMALL GENERATOR DOES NOT EXPORT TO ANY NETWORK.] “

Source:  Report to FERC on Standardization of Small Generation Interconnection Agreements and Procedures, November 12, 2002

Approaches from Other States and Jurisdictions     FERC

The details still need to be worked out for the secondary screen that addresses network interconnection.

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