An Act relative to Mass Save assessments

This bill requires Mass Save program administrators to offer free "zero-carbon assessments" to building owners, identifying measures to eliminate fossil fuel use (like insulation, window upgrades, and electric appliances) and listing available rebates. The assessments include safety checks for gas appliances and carbon monoxide, resulting in a report showing cost savings, health benefits, and a sample energy-efficient plan combining efficiency upgrades, solar, and storage. Utilities must collect and publish detailed energy data by zip code, and contractors must meet quality standards with preference for women/minority-owned businesses and those serving environmental justice communities. The policy applies to energy efficiency plans starting in 2025-2027.