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Net metering eligibility

Information to determine whether you are eligible to net meter.

Overview

To net meter, you must be a customer of a regulated electric company (Eversource, National Grid or Unitil).  In addition, your generating facility:

  1. must be interconnected by your electric company
  2. must meet all of your electric company’s requirements before you interconnect your generating facility
  3. must meet all of the rules and regulations
  4. you may need to apply for a cap allocation with the MassACA

Your net metering facility may be any type of generating resource if it smaller than 60 kilowatts (kW). G.L. c. 164, § 138; 220 C.M.R. § 18.00.  If your net metering facility uses wind, solar, or anaerobic digestion, it must be:

  • 2 megawatts (MW) or less for a private facility
  • 10 MW or less for a public facility. G.L. c. 164, § 138

Net metering and solar renewable energy certificates (SRECs)

The net metering and SREC programs are separate.  If a solar facility meets the requirements of both programs, the facility would generate net metering credits and SRECs.  For more information on the SREC program, contact the Department of Energy Resources.  For more information on the net metering program, contact the Department of Public Utilities

Net metering and competitive supply

If you have a competitive electric supplier (CES) you may receive net metering services. However, please keep these rules in mind:

  • If your CES bills you through the electric company, you can apply net metering credits to the entire electricity bill including the supply portion of the bill.
  • If you receive at least two bills, one from the electric company and one from the CES, you can only apply net metering credits to the bill from the electric company.

The net metering credit will be based on the electric company’s basic service charge (not the supply charge of the CES).  For example, if the electric company is charging 7 cents per kilowatt hour for basic service, but you are paying the CES 6 cents per kilowatt hour for its supply, the net metering credit component is still 7 cents.

Entities that cannot net meter

You cannot own a net metering facility or be a net metering customer with the regulated electric companies if you are:

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