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H 3519

An Act relative to a feasibility report on solar rooftop energy on new buildings

194th Legislature (2025-2026) Introduced by James Arena-DeRosa and 2 co-sponsors

Massachusetts must study feasibility of requiring solar rooftop systems on new buildings to inform future renewable energy policy and climate goals.

Accompanied a study order, see H5323
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Bill Summary · H 3519

Legislative bill overview

H 3519 requires the Commonwealth of Massachusetts to conduct and submit a feasibility report on installing solar rooftop energy systems on new buildings. The bill directs relevant state agencies to evaluate technical, economic, and regulatory factors related to mandatory or incentivized solar installations on newly constructed structures.

Why is this important

Solar adoption rates and renewable energy integration directly affect Massachusetts' progress toward its climate goals and long-term energy independence. A feasibility study would inform future policy decisions about whether solar requirements on new construction are technically viable and economically sound, potentially shaping building codes and energy standards for years to come.

Potential points of contention

  • Implementation costs: Questions about whether mandatory solar installation would increase housing and construction costs, potentially affecting affordability and developer willingness to build
  • Feasibility variations: Building type, location, roof orientation, and shading differ significantly across Massachusetts, making one-size-fits-all requirements potentially impractical for some properties
  • Incentive vs. mandate debate: Disagreement over whether the report should recommend incentive programs (tax credits, rebates) versus mandatory installation requirements, with different stakeholder preferences

Compiled from official sources — confirm details with the bill’s official record.

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