2024 code clarifies where home battery systems can go; thresholds push large installs into fire code
The 2024 IRC adds diagrams and impact-protection guidance for battery energy storage systems (ESS), clarifies garage placement for some listed units, and keeps higher-storage installations subject to International Fire Code provisions.
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County code staff summarized 2024 IRC changes that expand and clarify where residential battery energy-storage systems (ESS) can be installed. The 2024 text provides diagrams and impact-protection criteria (for example, when storage sits in a garage versus in an enclosed closet) and increases clarity about acceptable materials and ratings for enclosed installations.
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