Established under the Massachusetts Electric Utility Restructuring Act of 1997, the Renewable Energy Portfolio Standard (RPS) was amended per the Green Communities Act of 2008 . The Green Communities Act spurred the development of three programs, introduced in January 2009:

  • RPS Class I (evolved from the original RPS program)
  • RPS Class II
  • Alternative Energy Portfolio Standard (APS)

The revised and new standards are in the Massachusetts General Laws in Chapter 25A Section 11F (RPS Class I and Class II) and Section 11F 1/2 (APS).

Current Regulations for RPS and APS Programs

Please note: All documents listed on this web page are unofficial and provided for informational purposes only. The only official version of each regulation is published in the Massachusetts Register, which is available through the State Bookstore.

Learn about current developments in Regulatory Proceedings for RPS and APS.

RPS/APS Guidelines

Per 225 CMR 14.02, 15.02, and 16.02, Guidelines are a set of clarifications, interpretations, and procedures, including forms, developed by DOER to assist in compliance with the requirements of the respective regulation. DOER may issue new or revised Guidelines from time to time. Each Guideline shall be effective on its date of issuance or on such date as is specified therein, except as otherwise provided.

The following documents are Guidelines that are currently in effect and serve to clarify requirements or eligibility criteria set forth in the program regulations.

General Guidelines

Guidelines for Retail Electricity Suppliers

Alternative Portfolio Standard (APS)
Guideline on the Eligibility and Metering of Combined Heat and Power Projects pdf format of aps-chp-guidelines-jun14-2011.pdf

Biomass

RPS Solar Carve-Out

RPS Solar Carve-Out II


This information is provided by the Department of Energy Resources.