The "Building Decarbonization Act of 2025" is a legislative proposal aimed at reducing greenhouse gas emissions from buildings in Rhode Island, aligning with the state's goal of achieving net-zero emissions by 2050. The bill establishes a comprehensive energy benchmarking program for large buildings, requiring them to adhere to specific energy performance standards. It mandates that all new buildings be constructed to be "electric-ready," and it ensures that the Executive Climate Change Coordinating Council (EC4) is equipped with the necessary resources to implement these initiatives. The legislation also emphasizes the retrofitting of existing buildings, as a significant portion of the building stock will still be in use by 2050.

Key provisions of the bill include the introduction of definitions related to building performance, the creation of an energy use benchmarking program, and the establishment of an Environmental Justice Advisory Board (EJAB) to guide the implementation of these standards. The EC4 is granted authority to administer the program, issue guidance, and develop regulations, while also being responsible for collecting anonymized utility usage data to inform energy efficiency efforts. The bill outlines compliance measures, including penalties for non-compliance, and establishes a Building Performance Standards (BPS) fund to support the program.

Notably, it prohibits cities and towns from issuing permits for new construction or alterations of buildings that are not "electric-ready" after specified deadlines, ensuring that future developments align with the state's decarbonization goals. The EC4 shall evaluate data relevant to understanding energy use and greenhouse gas emissions of buildings, publish reports summarizing the data, and set performance metrics and standards for covered properties. The EJAB will advise the EC4 on climate change efforts with respect to potential impacts on, benefits to, and special considerations for individuals and communities impacted by poverty and environmental injustice.