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NSTAR Electric and Gas Corporation

Urban Grid Monitoring and Renewables Integration


NSTAR will enhance grid monitoring instrumentation on one of its secondary area network grids in downtown Boston, MA using state-of-the-art sensor equipment to monitor current and conductor temperature. This project will monitor grid-points in about 445 manholes with a layered instrumentation approach. The manholes designated “minor nodes” (about 315) will have sensors that detect high and low current and cable temperature threshold values on individual secondary-main cables within the grid-point. These nodes will have wireless transmitters to broadcast the alarms which will be collected wirelessly. The “major nodes” manholes (about 130) will be instrumented with technology to provide current sensing on a real time basis and be equipped with powerline carrier technology to allow near real-time monitoring at the operations center. Advanced metering infrastructure-capable meters will be deployed at customer locations on the grid where solar photovoltaics (PV) are located and will monitor consumption. In two substations, the remote terminal units will be upgraded to include programmable logic controllers (PLCs) to store network feeder information, continuously analyze data, and take actions when necessary. Information from the sensors, smart meters, and SCADA data will be sent to a repository for analysis.

Contact Information

David Szucs 
Project Manager 
National Energy Technology Laboratory 
626 Cochrans Mill Road 
Pittsburgh, PA 15236-1940 

Swapan Dey 
Principal Investigator 
NSTAR Electric & Gas Corp. 
1 NSTAR Way 
Westwood, MA 02090-2341 
(781) 441-8351 

Moody Demetry 
Lead Project Engineer/ PM 
NSTAR Electric & Gas Corp. 
1 NSTAR Way 
Westwood, MA 02090-2341 
(781) 441-8937


Recipient: NSTAR Electric and Gas Corporation
HQ State: Massachusetts
NERC Region:
Total Budget: $10,591,934
Federal Share: $5,267,592
Funding Program:
Project Type:
Targeted Benefits:
  • Greatly improved knowledge of the urban grid’s status in near real-time allowing proactive maintenance leading to improved safety & reliability
  • Possibly enable DG integration with secondary area network grids

The Department of Energy's Office of Electricity (OE) recognizes that our nation's sustained economic prosperity, quality of life, and global competitiveness depends on an abundance of secure, reliable, and affordable energy resources. OE leads the Department of Energy's efforts to ensure a resilient, and flexible electricity system in the United States. Learn more about OE >>

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