Guide Clean Energy Standard (310 CMR 7.75)

The Clean Energy Standard (CES) requires retail electricity sellers to annually demonstrate the use of clean energy to generate a specified percentage of their electricity sales.

Current Regulation

310 CMR 7.75: The Clean Energy Standard was finalized in August 2017.

Electricity Sector Regulations Fact Sheet (PDF)

310 CMR 7.75: Clean Energy Standard (PDF)

Electricity Sector Response to Comment (PDF)

310 CMR 7.00 and 60.00: Background Document on Proposed Regulations and Amendments (Word)
This document, published with the regulation proposed in 2016, is provided for reference only. See specifically Section II. C., Page 24.


MassDEP has proposed amendments to 310 CMR 7.75: The Clean Energy Standard.

Proposed Amendments (PDF)

Technical Support Document (PDF)

A public hearing on the proposed amendments was held on November 27, 2017, in Boston. MassDEP accepted public comment through December 7, 2017.

Stakeholder Input

MassDEP is soliciting stakeholder input on expanding 310 CMR 7.75: The Clean Energy Standard.

Stakeholder Document: Options for Expanding the Clean Energy Standard (PDF)

Stakeholder Meeting Presentation: Options for Amending the CES (PDF)

Stakeholder Comments: 2016 Energy Diversity Act (PDF)

Stakeholder Comments: CES-E (PDF)

Stakeholder Comments: Municipal Utilities (PDF)

MassDEP will provide additional information for regulated electricity sellers well before the 2018 compliance year begins.

Reporting Forms

The CES provides for limited exemptions from 2018 and 2019 clean energy obligations for retail sellers of electricity with existing contracts that meet certain conditions. Retail sellers are required to submit the form and associated Excel workbook in Additional Resources below by December 31, 2017.

Additional Resources

Supplemental Information


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