Massachusetts Renewable Portfolio Standard

Massachusetts Renewable Portfolio Standard
Name	Massachusetts Renewable Portfolio Standard
Jurisdiction	Massachusetts
Status	active
Enacted by	Massachusetts General Court
Introduced	1990s
Latest amendment	An Act Relative to Green Communities

Massachusetts Renewable Portfolio Standard

The Massachusetts Renewable Portfolio Standard is a binding statute enacted by the Massachusetts General Court that mandates increasing shares of electricity sales be supplied from designated renewable energy sources. It integrates regulatory oversight by the Massachusetts Department of Energy Resources, compliance markets administered by the Department of Public Utilities (Massachusetts), and procurement programs implemented by utilities such as Eversource Energy and National Grid and municipal aggregators like Holyoke Gas & Electric. The policy interacts with regional frameworks including the Regional Greenhouse Gas Initiative, ISO New England, and federal incentives like the Investment Tax Credit and Production Tax Credit.

Overview

The standard requires distribution companies, competitive suppliers, and municipal light plants to procure a specified percentage of electricity from eligible technologies and to demonstrate compliance via tradable Renewable Energy Certificates administered under GATS (tracking system), NEPOOL GIS, and state reporting to the Massachusetts Department of Energy Resources. Its targets are set on a schedule that escalates to reach long-term goals aligned with Executive Order 569 and state climate goals codified by the Act Driving Clean Energy and Offshore Wind (Massachusetts) and influenced by landmark decisions from the Massachusetts Supreme Judicial Court on energy policy. Compliance interacts with renewable portfolio standards in other states such as New York (state), California, and Rhode Island, as well as regional transmission issues overseen by Federal Energy Regulatory Commission.

History and Legislative Development

The origin traces to early renewable mandates in the 1990s, influenced by policy debates in the 1990s United States energy policy era and legislative initiatives from committees such as the Joint Committee on Telecommunications, Utilities and Energy (Massachusetts). Major revisions occurred with the Green Communities Act and later amendments tied to the Global Warming Solutions Act (Massachusetts), culminating in updates that responded to procurement needs for projects like Vineyard Wind and Mayflower Wind. Legislative sponsors and political figures involved include members of the Massachusetts Senate and Massachusetts House of Representatives and governors including Deval Patrick and Charlie Baker who issued executive directives shaping implementation. Administrative rulemakings engaged the Massachusetts Department of Energy Resources and adjudications before the Massachusetts Department of Public Utilities.

Program Structure and Compliance Mechanisms

Compliance obligations are defined annually with alternative compliance payments and banking of Renewable Energy Certificates. The program uses competitive solicitations via utilities such as Eversource Energy and National Grid and procurement contracts with developers including NextEra Energy and Ørsted (company). Enforcement involves audits and penalties overseen by the Department of Public Utilities (Massachusetts), while eligibility and certification processes coordinate with tracking systems like NEPOOL GIS and federal programs such as the Investment Tax Credit. Market mechanisms interact with regional markets managed by ISO New England and regulatory oversight from the Federal Energy Regulatory Commission and litigation at the Massachusetts Appeals Court when disputed.

Renewable Energy Classes and Eligibility

The standard defines multiple classes of eligible generation, distinguishing technologies like solar power (photovoltaic), onshore wind power, offshore wind projects such as Vineyard Wind, anaerobic biomass, landfill gas conversion projects linked to entities like Republic Services, and hydroelectric facilities certified under state criteria. Specific carve-outs and multipliers have applied for technologies including community solar projects promoted by Massachusetts Clean Energy Center and low-income solar initiatives coordinated with Massachusetts Department of Housing and Community Development. Eligibility determination has referenced federal definitions from the Environmental Protection Agency and interagency consultations with Department of Energy (United States) programs.

Impact and Outcomes

The policy contributed to substantial growth in in-state and contracted renewable capacity, prompting deployments by developers such as Avangrid, Iberdrola (company), and Eversource Energy. It influenced retail electricity rates, investment flows into offshore wind projects like Mayflower Wind and utility-scale solar farms in Berkshire County and municipal initiatives in Cambridge, Massachusetts and Boston, Massachusetts. Studies by organizations like the Massachusetts Institute of Technology, Union of Concerned Scientists, and National Renewable Energy Laboratory assessed emissions reductions, job creation numbers reported by MassCEC, and economic impacts evaluated by the New England Power Pool stakeholders. The program also shaped interactions with regional procurement for capacity and renewable attributes overseen by ISO New England and market participants including Exelon.

Criticisms and Legal Challenges

Critics raised issues in proceedings before the Massachusetts Department of Public Utilities and in court filings to the Massachusetts Supreme Judicial Court regarding rate impacts, locational eligibility for out-of-state resources, and the valuation of attributes versus physical delivery. Environmental justice advocates and organizations such as Toxics Action Center and Conservation Law Foundation challenged siting and community benefit provisions, while industry groups including the American Wind Energy Association and Solar Energy Industries Association lobbied for specific eligibility treatments. Legal disputes have invoked federal preemption arguments reaching the Federal Energy Regulatory Commission and appeals at the United States Court of Appeals for the First Circuit in matters concerning interstate REC transactions and procurement rules.

Category:Energy policy of Massachusetts