What changes next for residential energy storage systems in Oklahoma?

The 2026 NEC is in development.

What applies to my job?

Pick the state and the product you build, install, or inspect. The card below answers from each state’s own record.

State

Residential energy storage systems in Oklahoma

Which codes apply? In Oklahoma, residential energy storage systems fall under the 2023 NEC (statewide minimum), the 2024 IRC (statewide minimum), the 2024 IFC (statewide minimum), and the 2023 NFPA 855 through the fire code.

Wall or floor units at a one- or two-family home, about 5 to 20 kWh each, up to 80 kWh in a garage or outdoors. State record read Oct 24, 2026. Data as of Oct 26, 2026.

Codes that reach residential energy storage systems

The edition Oklahoma enforces for each code that governs the product, and the part of the code that does.

NECNational Electrical Code

2023 NECVerified

in force since Sep 14, 2024 · Statewide minimum

Where it reaches the product. Article 706, energy storage systems, with 705 for the interconnection and 710 for stand-alone operation.

OUBCC Rules, NEC 2023 (OAC 748:20-10) · OAC 748:20-10-1

The 2026 NEC is in development.

The Oklahoma NEC record
IRCInternational Residential Code

2024 IRCVerified

in force since Sep 14, 2026 · Statewide minimum

Where it reaches the product. Section R328, stationary storage battery systems in dwellings.

OUBCC Rules, IRC 2024 (OAC 748:20-6) · OAC 748:20-6-1

The Oklahoma IRC record
IFCInternational Fire Code

2024 IFCVerified

in force since Sep 14, 2026 · Statewide minimum

Where it reaches the product. Chapter 12, energy systems, section 1207, which also points to NFPA 855.

OUBCC Rules, IFC 2024 (OAC 748:20-4) · OAC 748:20-4-1

The Oklahoma IFC record
NFPA 855NFPA 855, Standard for the Installation of Stationary Energy Storage Systems

2023 NFPA 855Verified

in force since Sep 14, 2026 · Through the IFC, chapter 12 · Edition derived from the fire code the state adopts

Where it reaches the product. Chapter 15, one- and two-family dwellings and townhouses.

OUBCC permanent rule adopting 2024 IFC · OAC 748:20-4-1; 43 Ok Reg 20

The Oklahoma NFPA 855 record

Coming next

NEC
The 2026 NEC is in development.
OUBCC home page says a committee reviewing the 2026 NEC has begun meeting; the technical committee page says OUBCC is reviewing the ‘2027 National Electrical Code’ (naming inconsistent).
Partial

State or local

NECOklahoma sets the NEC as a statewide minimum, so a city or county may enforce a newer edition.
NECRule states the OUBCC has not incorporated published NEC errata or TIAs for the 2023 edition.
IRCOklahoma sets the IRC as a statewide minimum, so a city or county may enforce a newer edition.
IRCAppendices A through X are informative and not mandatory unless a local jurisdiction adopts them (stated in the 2018 rule, 748:20-6-3(a)).
IFCOklahoma sets the IFC as a statewide minimum, so a city or county may enforce a newer edition.

Cities and counties can amend a statewide code, so confirm the edition in force with the local official.

Go deeper

Oklahoma laws that name residential energy storage systems

Statutes, rules, and commission orders are tracked state by state.

No Oklahoma law or rule on the site names residential energy storage systems. The product page shows the states that have one.

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