Massachusetts Air Quality Plan Approval
Summary
The Environmental Protection Agency (EPA) is approving the regional haze State Implementation Plan (SIP) revision submitted by Massachusetts on July 22, 2021, and supplemented on June 15, 2022, as satisfying applicable requirements under the Clean Air Act (CAA) and EPA's Regional Haze Rule for the program's second implementation period. Massachusetts' SIP submission addresses the requirement that states must periodically revise their long-term strategies for making reasonable progress towards the national goal of preventing any future, and remedying any existing, anthropogenic impairment of visibility, including regional haze, in mandatory Class I Federal areas. The SIP submission also addresses other applicable requirements for the second implementation period of the regional haze program. The EPA is taking this action pursuant to sections 110 and 169A of the Clean Air Act.
Compliance Requirements
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Massachusetts must implement the Regional Haze State Implementation Plan Revision for the Second Planning Period (2018-2028) as approved by EPA; Canal Generating Station must limit sulfur content of fuel oil for EU1 to 0.3% sulfur content limit; Sources must comply with 310 CMR 7.05(1), Fuels All Districts, Sulfur Content of Fuels regulations; Municipal Waste Combustors must comply with 310 CMR 7.08(2), Incinerators, Municipal Waste Combustors regulations; Sources of Oxides of Nitrogen (NOx) must comply with 310 CMR 7.19, Reasonably Available Control Technology (RACT) requirements; States must periodically revise their long-term strategies for making reasonable progress towards preventing future and remedying existing anthropogenic impairment of visibility in mandatory Class I Federal areas; States must include a description of the criteria used to determine which sources or groups of sources they evaluated for four-factor analysis; States must appropriately document the technical basis for source selection
Market Impacts
Fuel oil sulfur content restriction of 0.3% for Canal Generating Station Unit 1, incorporated into SIP and federally enforceable; Maintenance of existing stringent emission controls for municipal waste combustors (MWCs) and other sources under 310 CMR 7.08(2) and 310 CMR 7.19 RACT requirements; Sulfur content restrictions create market barriers for higher sulfur fuel oil suppliers while creating opportunities for low-sulfur fuel providers; Continued emphasis on existing control measures and potential for technology innovation in emission reduction systems
Validated Company Impacts
CONSOLIDATED EDISON INC
Con Edison operates electric utility services and energy production facilities in New York, which shares regional air quality concerns with Massachusetts under the same EPA regional haze program. The company's combustion-based energy generation operations would be subject to similar sulfur content and NOx emission regulations if located in Massachusetts, making this rule highly relevant to their business model. The rule focuses on air quality compliance for Massachusetts-based emission sources like power plants and waste combustors, which does not align with the company's risk profile centered on cybersecurity, data privacy, and financial compliance. There is minimal overlap as the company operates in financial services with no disclosed operations in regulated emission-intensive industries or Massachusetts jurisdiction.
Duke Energy CORP
Duke Energy operates primarily in the Southeast and Midwest regions of the U.S., while this rule specifically targets Massachusetts-based operations and facilities. The company's electric utility operations involve power generation that could theoretically be subject to similar air quality regulations, but there is no geographic or operational overlap with the Massachusetts-specific requirements of this rule. The rule's sulfur content restrictions and emission control requirements for power generation facilities directly align with the company's disclosed regulatory compliance risks, particularly EPA Rule 111 Impact and Coal Combustion Residuals Regulation. The company's operational risks related to commodity price fluctuations also connect to potential fuel cost impacts from low-sulfur fuel requirements.
NEXTERA ENERGY INC
NextEra Energy operates electric generation facilities and engages in fuel marketing/trading, which could involve fuel oil subject to sulfur content regulations. However, the company's primary operations are in Florida and Canada, not Massachusetts where this specific state implementation plan applies, and their generation portfolio focuses on natural gas, nuclear, and renewables rather than fuel oil combustion. The rule's requirements for fuel sulfur content limits, emission controls, and compliance costs directly align with the company's Environmental Compliance Costs risk and Regulatory Changes risk. The market impacts on fuel suppliers and clean energy technology also overlap with the company's Cost Recovery Uncertainty and Clean Energy Policies risks.
Talen Energy Corp
Talen Energy operates power generation facilities subject to environmental regulations and emission allowance requirements, directly aligning with this rule's focus on fuel oil sulfur content restrictions for power plants and NOx emission controls. As a power generator, the company would be significantly affected by the 0.3% sulfur content limit for fuel oil and RACT requirements for NOx emissions that apply to electric utilities and industrial combustion sources. The rule focuses on air quality compliance and fuel sulfur content restrictions, which do not align with the company's disclosed risk factors that primarily concern weather events, PJM capacity penalties, hedging losses, and electricity market volatility. The company's regulatory compliance risks are minimal (only 2 identified) and not specified to include environmental or air quality regulations.