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Project logoGeneration Facilities' Transmission Interconnection Guideline

These NU guidelines are intended to provide to developers of new generation facilities (Interconnecting Customers – ICs) clear and consistent guidance for the planning and design of transmission interconnections. The Independent System Operator - New England (ISO-NE) document titled "General Transmission System Design Requirements for the Interconnection of New Generators (Resources) to the Administered Transmission System" dated 2/01/05 http://www.iso-ne.com/participate/applications-status-changes/new-modified-interconnections provides certain requirements, particularly for plants interconnected to Pool Transmission Facility (PTF) transmission facilities.

The following NU guidelines (46 KB) are intended to assist the ICs in planning for interconnections to both PTF and non-PTF facilities. The guideline contains “shall” and “must” statements that generally reflect good utility practice, including compliance with NU policy and procedures. Where ICs make a request to depart from any guideline provision, NU will consider and render a decision based on the specifics of the interconnection proposal, ISO-NE, LGIP, LGIA requirements, potential Distribution system benefits and good utility practice.

Guidance on ISO-NE Proposed Plan Application (PPA) process for generators connecting to the NU transmission system

Interconnecting Customers (ICs) who interconnect their generator to the NU transmission system (greater than 69-kV) will need to contact ISO-NE at:
http://www.iso-ne.com/genrtion_resrcs/nwgen_inter/index.html

Guidance on ISO-NE Proposed Plan Application (PPA) process for generators connecting to the NU distribution system

This document provides guidance to Interconnecting Customers (ICs) to interconnect their generator to a distribution voltage (less than 69-kV) in the NU service area through the ISO-NE PPA application process. This document will explain what you need to know about the PPA application process. Generators connecting to the NU distribution system are included in the PPA process because the energy from these sources may impact the flow of the transmission system. The ISO-NE planning procedures used in the PPA are located at the ISO-NE web page:
http://www.iso-ne.com/rules_proceds/isone_plan/index.html

These procedures outline the requirements and application forms to be submitted and reviewed by ISO-NE. The attached document incorporates these ISO-NE requirements.
View the most recent PPA Tutorial (103 KB)

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