National Grid (Narragansett) - Interconnection Guidelines

March 18, 2008


Rhode Island does not have formal statewide uniform interconnection standards for net-metered systems or for larger distributed-generation systems that are not net metered. However, Narragansett Electric, an investor-owned utility that serves 99% of the state's mainland customers, has developed a streamlined, one-page interconnection application and agreement form for net-metered energy systems. Narragansett Electric uses the same one-page agreement available to Massachusetts Electric customers; both utilities are subsidiaries of National Grid. Additional insurance and an external disconnect switch are not required.

Program Overview

Implementing Sector: State
Category: Regulatory Policy
State: Rhode Island
Incentive Type: Interconnection
Web Site:
Start Date:
Eligible Renewable/Other Technologies:
  • Geothermal Electric
  • Solar Thermal Electric
  • Solar Photovoltaics
  • Wind (All)
  • Biomass
  • Hydroelectric
  • Municipal Solid Waste
  • Combined Heat & Power
  • Fuel Cells using Non-Renewable Fuels
  • Landfill Gas
  • Wind (Small)
  • Fuel Cells using Renewable Fuels
  • Other Distributed Generation Technologies
  • Microturbines
Applicable Utilities: No
System Capacity Limit: 25 kW for net-metered systems; 1 MW total enrollment
Standard Agreement: Yes (Narragansett Electric/National Grid)
Insurance Requirements: No
External Disconnect Switch: No
Net Metering Required: No


Name: National Grid (Narragansett)
Organization: Business Services Office - Ocean State
Address: 280 Melrose Street
Providence RI 02901
Phone: (800) 322-3223

This information is sourced from DSIRE; the most comprehensive source of information on incentives and policies that support renewables and energy efficiency in the United States. Established in 1995, DSIRE is operated by the N.C. Clean Energy Technology Center at N.C. State University.