Board reviews IECC's shift to points-based energy credits and size-based tables
Summary
Staff summarized the 2021/2024 move from a single-option approach to a points-based additional energy credit system and noted the 2024 split of tables by building size (e.g., >2,000 sf and >5,000 sf); members discussed paperwork burden and possible exemptions.
Staff described the IECC's change from a single-option prescriptive approach to a points-based additional energy credit system, and explained that the 2024 text splits the credit tables by building size (smaller table for buildings >2,000 sf and another for >5,000 sf) and customizes requirements by occupancy and climate zone.
"Additional credits are required based on occupancy classification and climate zone," the presenter said, noting that designers must add up points from multiple measures to meet a requirement that in some examples equated to 10 points. Staff referenced IECC insights that suggested a potential up-to-7% building energy cost savings in some cases, but members said the paperwork burden for architects and engineers would increase.
Board members generally supported keeping a points pathway for flexibility but asked staff to return with clearer presentation and examples that would reduce plan-review complexity. No final action was taken; the board agreed the change warranted further review before adoption.
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