NSTAR Electric Company Smart Grid Project

From Open Energy Information

NSTAR Electric Company, located in Norfolk, Massachusetts, will receive $10 million in funding to develop a smarter energy grid. The U.S. Department of Energy selected NSTAR as one of 100 companies to receive federal stimulus funds as part of the American Recovery and Reinvestment Act of 2009.[2]

The NSTAR Electric Company (NSTAR) Grid Self-Healing and Efficiency Expansion project involves the installation of significant new equipment for automation and management of the distribution grid. A network of new and existing switches, monitors, and reclosers are installed on selected circuits to provide the grid with the capability to automatically isolate grid power disturbances and to rapidly restore functional portions of circuits. New automated distribution equipment is also being deployed by the utility as a means to better manage power fluctuations on the grid, thus improving power factor and system energy efficiency.[3]


  • Distribution Automation Equipment for Approximately 400 out of 1,960 Circuits
  • Distribution Automation Communications Network
  • SCADA Communications Network
  • Automated Distribution Circuit Switches
  • Automated Capacitors
  • Equipment Health Sensors
  • Circuit Monitors/Indicators
  • Equipment Condition Monitors

Targeted Benefits

  • Improved Electric Service Reliability and Power Quality
  • Reduced Costs from Equipment Failures, Distribution, and Line Losses
  • Reduced Truck Fleet Fuel Usage
  • Reduced Greenhouse Gas and Criteria Pollutant Emissions


  1. ARRA Smart Grid Investment Grants
  2. 2.0 2.1 NSTAR Award
  3. Project Information Page