Solar zoning update a dim idea - Cambridge Day

Solar Zoning Update a Dim Idea - Cambridge Day

Cambridge is considering a rule to limit the roof size of new affordable housing overlay or 6-story mixed-income buildings to protect solar on existing buildings.

However, this would reduce the size of future green roofs. The city's Solar Zoning amendment aims to encourage and protect solar adoption, as rooftop solar is crucial for providing clean electricity and reaching carbon goals.

A green roof ordinance already requires new buildings over 25,000 sq. to have roofs with vegetation or rooftop solar. The proposed rule may impact future solar installations, not just existing ones.

Rooftop solar is an important tool for providing clean electricity and reaching our carbon goals, but any amendment needs to consider the impact on future solar installations, not just existing ones.

Author's summary: Cambridge's solar zoning update may hinder future green roofs.

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Cambridge Day Cambridge Day — 2025-10-18

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