"A market-based framework is needed to provide a clear signal to the electricity market to improve upon the cleaner energy portfolios of the last few years. One approach to be considered is a CPS [Clean Energy Performance Standard], which would require electricity suppliers to favor lower- and no-emissions sources in the mix of electricity delivered to their customers." 

- Massachusetts Clean Energy and Climate Plan for 2020 pdf format of Massachusetts Clean Energy and Climate Plan...
file size 1MB, p. ES-10


Consistent with the Clean Energy and Climate Plan, and its requirement that Massachusetts achieve an 80 percent reduction in GHG emissions by 2050, MassDEP intends to implement a Clean Energy Standard (CES). A CES would provide a long-term incentive to deliver increasing amounts of clean electricity to consumers in Massachusetts, and thereby move the state toward a stable and reliable energy system.

Proposed Regulations 

MassDEP has postponed the hearings and comment period on the proposed Clean Energy Standard rule until it has completed the reviews required under Executive Order 562. A new schedule will be published when that review is completed.

Background Information