National Grid System Information Portal User Guide

2

Overview

2

Click Here to Link to National Grid System Information Portal*

National Grid has created a collection of maps to help customers, contractors and developers identify potential project sites. The map provides the location and specific information for selected electric

transmission lines, distribution lines and associated substations within the National Grid service NY electric service area. National Grid’s electric system is dynamic. System configurations can change for a variety of reasons both planned and unplanned. National Grid will update the contents on a periodic basis so be aware

that the same location may show different information over time.

Please note that the portal and maps are not a guarantee that generators can interconnect at any particular time and place. A number of factors drive the ability and cost of interconnecting distributed generation to the

electric system and actual interconnection requirements and costs will be determined following detailed studies. These studies will consider your specific project location, operating characteristics and timing.

Additionally, environmental and other required permits are independent of our interconnection process and may limit the suitability of a particular site.

Detailed information on this process can be found at: https://www9.nationalgridus.com/niagaramohawk/business/energyeff/4_interconnection.asp

* Supported Browsers: IE 9 and higher. Compatibility View is not supported.

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3

Navigation

3

Click Tabs to Navigate between maps

Zoom Control

Toggle Map

Layers

Toggle Legend

BaseMap

Measure Tools

Info Tool

Print Tools

Enter Text to Search Here

Change Search Options

Run the Search

4

Introduction

4

Provides an overview of the portal and links to related data

Projects symbolized by

shape & color –legend should be

used

Links to Regulatory Filings and Reports

5

Distribution Assets Overview

5

Shows National Grid electric distribution assets including circuits (feeders) by phase. Circuits color coded by feeder name and symbolized by phase.

Selection will show a variety of operating attributes and data.

Thick solid line - 3 Phase

Overhead Circuit

Thick dashed line - 3 Phase Underground

Circuit

Thin Solid Line – 1 or

2 Phase Overhead

Circuit Thin Dashed Line – 1 or 2

Phase Underground

Circuit

6

Distribution Assets Overview

6

Shows National Grid projects in the National Grid 5 year plan by location and type. Selection will show a variety of information regarding the planned

project.

Projects symbolized by

shape & color –legend should be

used

7

DG Red Zone

7

Search by address or selecting a location on the map shows an assessment of interconnection costs

8

DER Opportunity

8

Assessment of DER interconnection benefits on the National Grid electric distribution system (by feeder). Selection will show a variety of operating

attributes and data.

Information menu may also contain

links to additionally

detailed information