National Grid Massachusetts

System Data Portal

National Grid has created a collection of maps to help customers, contractors and developers identify potential project sites. Each map provides the location and specific information for selected electric distribution lines and associated substations within the National Grid MA 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 interconnection process and may limit the suitability of a particular site.

 

For questions about the System Data Portal, and to find more information about interconnecting Distributed Generation, please see the following website: MA Distributed Generation.

 

 

To help enable the use of the portal, National Grid has provided a user guide in PDF. This can be accessed here: Massachusetts System Data Portal User Guide.

 

For the most refreshed view of the portal, please clear your internet browser cache periodically.

 

Additionally, please review the National Grid Massachusetts System Data Portal Terms of Use prior to using the portal.

 

 

For vendors, developers, and third-party solution providers seeking to participate in National Grid’s Non-Wires Alternative (NWA) and other project and partnership opportunities, you will need to be enrolled in National Grid’s Ariba vendor system.

 

Please contact National Grid at [email protected] to request access to National Grid's Ariba system.

 

Once enrolled, please use the following link to access National Grid’s Ariba system: http://nationalgrid.sourcing.ariba.com/.