Washington sets new energy efficiency credit requirements for building types

A significant shift in energy efficiency standards for building types was a key focus at the SBCC WSEC-C TAG Meeting held on May 9, 2025. The discussion centered around new requirements aimed at enhancing energy efficiency across various building categories, with a notable adjustment to the energy efficiency credit requirements.

One of the major changes proposed was the reduction of the energy efficiency credit requirement for building additions and structures with unconditioned spaces from 50% to 20%. This adjustment is part of a broader strategy to align with a target of achieving a 55.5% reduction in energy use from a 2006 baseline by 2024. The rationale behind this change is to create a more manageable framework for compliance while still pushing for significant energy savings.

The meeting highlighted the importance of recalibrating the credit values to ensure they accurately reflect the energy efficiency measures being implemented. Participants discussed the need for a comprehensive recalculation of the credit tables to ensure fairness and effectiveness in achieving the desired energy reductions. The proposed adjustments aim to simplify the process for builders while maintaining a strong commitment to energy efficiency.

Additionally, the introduction of new credit categories for buildings utilizing high-efficiency heating systems was discussed. These credits would be based on a variety of scenarios, including the use of heat pump systems, which are increasingly recognized for their efficiency. The meeting underscored the importance of these measures in promoting sustainable building practices in Washington.

As the Building Code Council moves forward, the recalibration of energy efficiency standards is expected to play a crucial role in shaping the future of building regulations, ensuring that Washington continues to lead in energy conservation efforts. The anticipated outcomes from these discussions will be closely monitored as the council prepares to finalize the new codes.