Commercial and utility energy storage systems in Arizona
Which codes apply? In Arizona, commercial and utility energy storage systems fall under local adoption of the NEC, the 2024 IFC (statewide minimum), local adoption of the IBC, and the 2023 NFPA 855 through the fire code.
Codes that reach commercial and utility energy storage systems
The edition Arizona enforces for each code that governs the product, and the part of the code that does.
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NECNational Electrical CodeThe Arizona NEC recordLocal adoptionVerified
Where it reaches the product. Article 706, with 705 for the interconnection.
A.R.S. 9-802 (municipal adoption by reference); A.R.S. 11-861 (county adoption by reference); A.R.S. 34-461 (public buildings)
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IFCInternational Fire CodeThe Arizona IFC record2024 IFCVerified
in force since Apr 13, 2026 · Statewide minimum
Where it reaches the product. Chapter 12, section 1207, and the operational permit.
Arizona State Fire Code · A.A.C. R4-36-201 (amended 32 A.A.R. 558); A.R.S. 37-1383(A)(2)
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IBCInternational Building CodeThe Arizona IBC recordLocal adoptionVerified
Where it reaches the product. Occupancy, construction type, and separation for the building that holds the system.
A.R.S. 9-802 (municipal adoption by reference); A.R.S. 11-861 (county adoption by reference); A.R.S. 34-461 (public buildings)
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NFPA 855NFPA 855, Standard for the Installation of Stationary Energy Storage SystemsThe Arizona NFPA 855 record2023 NFPA 855Verified
in force since Apr 13, 2026 · Through the IFC, chapter 12 · Edition derived from the fire code the state adopts
Where it reaches the product. The whole standard: siting, size and separation, fire control, explosion control, and commissioning.
Arizona State Fire Code (A.A.C. R4-36-201 incorporating the 2024 International Fire Code) · A.A.C. R4-36-201 (Supp. 26-1); 32 A.A.R. 558
Arizona laws that name commercial and utility energy storage systems
On the site: seven laws, rules, orders, and bills, newest first.
| Law or rule | Kind | Stage | Date | What it does |
|---|---|---|---|---|
| A.A.C. R4-36-201 | Rule | PartialIn force | Apr 13, 2026 | Adopts the 2024 International Fire Code, with state amendments, as the State Fire Code. Source (opens in a new tab) |
| Chino Valley Ordinance 2025-956 | Local ordinance | PartialIn force | Sep 23, 2025 | Allows rooftop solar on homes and parking structures, and battery storage at homes and businesses only when stored energy is used on site. Source (opens in a new tab) |
| A.R.S. 11-254.07 | Statute | PartialIn force | – | Lets county boards of supervisors create renewable energy incentive districts for utility-scale renewable and storage equipment. Source (opens in a new tab) |
| A.R.S. 42-14155 | Statute | PartialIn force | – | Requires the Department of Revenue to value utility-scale renewable and storage equipment at 20 percent of depreciated cost for property tax through Dec 31, 2040. Stand-alone and colocated storage both qualify. Source (opens in a new tab) |
| HB 2134 | Bill | PartialDid not pass | – | Would have barred utilities and public bodies from connecting certain equipment from Chinese companies to critical infrastructure. Source (opens in a new tab) |
| HB 2781 | Bill | PartialDid not pass | – | Would have required solar power plant owners to file decommissioning plans and keep financial assurance. Source (opens in a new tab) |
| HB 2918 | Bill | PartialDid not pass | – | Would have valued utility renewable and storage equipment placed in service after Dec 31, 2026 at full depreciated cost for property tax. Source (opens in a new tab) |
Every Arizona law on commercial and utility energy storage systems, with filters
For information only. Your local building or fire official decides which code applies. We check state records often but can miss a recent change, so confirm with your official before you design, permit, or install. Terms of use