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 Wyoming

Which codes apply? In Wyoming, residential energy storage systems fall under the 2026 NEC, local adoption of the IRC, 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 Wyoming enforces for each code that governs the product, and the part of the code that does.

NECNational Electrical Code

2026 NECPartial

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

National Electrical Code (State Fire Marshal electrical safety) · W.S. 35-9-120(a)

The Wyoming NEC record
IRCInternational Residential Code

Local adoptionPartial

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

Wyo. Admin. Code 041.0002.1 (Codes and Standards)

The Wyoming IRC record
IFCInternational Fire Code

2024 IFCVerified

in force since Jun 26, 2024 · Statewide minimum

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

International Fire Code, 2024 Edition (Council Codes and Standards rule) · Wyo. Admin. Code 041.0002.1 (Codes and Standards); W.S. 35-9-106(a)

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

2023 NFPA 855Partial

in force since Jun 26, 2024 · 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.

International Fire Code, 2024 Edition (Council Codes and Standards rule) · Wyo. Admin. Code 041.0002.1; W.S. 35-9-106(a)

The Wyoming NFPA 855 record

Coming next

Nothing is on file ahead for these codes in Wyoming. The changes page lists every move the site tracks.

State or local

NECMunicipalities and counties granted local enforcement authority under W.S. 35-9-121 enforce electrical standards themselves; stricter local provisions prevail.
IRCWyoming leaves the IRC to cities and counties.
IFCWyoming sets the IFC as a statewide minimum, so a city or county may enforce a newer edition.
IFCMunicipalities and counties with local enforcement authority may enforce stricter local provisions, which prevail over the state code.

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

Go deeper

Wyoming laws that name residential energy storage systems

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

No Wyoming 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