Sources & Methodology

The full text of Chapter 169 of the Acts of 2008, the landmark Massachusetts energy law. Establishes mandatory ratepayer charges for energy efficiency programs (2.5 mills/kWh) and the Renewable Energy Trust Fund (0.5 mills/kWh), creates the Office of Ratepayer Advocacy, and sets the framework for the state's renewable energy mandates.

A detailed legal analysis of the Green Communities Act by WilmerHale, one of the nation's leading law firms. Documents the specific policy benchmarks enacted into law: 25% demand-side energy reduction by 2020, 20% renewables by 2020, mandatory 10-15 year power purchase contracts with renewable developers, and the RGGI cap-and-trade framework.

Commissioned by the MA Department of Energy Resources under Commissioner Philip Giudice, this study assessed the state's renewable energy potential. Documents that in 2006, Massachusetts generated only 0.5% of retail electricity from RPS-qualifying renewables and identifies key barriers including complicated permitting, local opposition, and difficulty securing financing.

Executive summary of Massachusetts' landmark energy storage study. Reveals that the top 1% most expensive hours accounted for 8% ($680 million) of ratepayers' annual electricity spend, and the top 10% of hours accounted for over $3 billion. Found that 1,766 MW of storage could deliver $2.3 billion in ratepayer benefits with a benefit-cost ratio of 1.7 to 2.4.

The complete technical report behind the State of Charge Executive Summary. Contains full modeling methodology, detailed scenario analysis, and the complete dataset supporting the energy storage initiative's cost-benefit findings. Prepared by Customized Energy Solutions, Alevo Analytics, Sustainable Energy Advantage, Daymark, and Strategen.

Presentation from a state-hosted stakeholder webinar on the Energy Storage Initiative. Identifies critical market barriers including lack of clarity in ISO-NE market rules for energy storage, prices insufficient for investment, and "financiability" as the highest-importance barrier amenable to policy influence.

The public presentation of the State of Charge findings. Includes the 600 MW storage target, $800M in projected ratepayer system benefits, and a detailed breakdown: $1,093M in reduced peak costs, $305M in T&D cost reduction, $275M in energy cost reduction, and $219M in renewable integration benefits. Notes that MA had only ~2 MW of advanced storage deployed, ranking 23rd nationally.

The state's official decarbonization roadmap under Secretary Bethany A. Card. Projects average household energy savings of $400/year by 2030 relative to 2019 levels, while simultaneously acknowledging that "lower income households are less likely to be able to afford the initial expenditures required to electrify." Sets targets of 3,200 MW offshore wind by 2030 and 70% electricity sector emissions reduction.

Technical appendices to the CECP including five decarbonization scenarios, Clean Heat Standard analysis, and modeling assumptions (RPS 40% by 2030, Clean Energy Standard 60% by 2030). Contains detailed scenario modeling from "Reference" to "Full Electrification" pathways.

Analyzes the projected costs of New England's decarbonization mandates across all six states. Estimates an additional $815 billion in costs through 2050, with residential bills rising from $2,100/year (2024) to $4,610/year (2050). Notes that the required renewable buildout would need 225 GW versus the current 35.5 GW installed capacity (a 6.4x increase).

Compares four energy scenarios for New England through 2050: Renewable ($4,610/yr residential bills), Nuclear ($3,339/yr), Natural Gas ($2,302/yr), and Happy Medium ($2,569/yr). Calculates that the Renewable scenario increases prices 126.4% while Natural Gas increases only 13%. Cites EIA Table 5.6.A — the same primary federal data source used by this site.