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 Tennessee

Which codes apply? In Tennessee, residential energy storage systems fall under the 2017 NEC, the 2018 IRC, the 2021 IFC, and the 2020 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 Tennessee enforces for each code that governs the product, and the part of the code that does.

NECNational Electrical Code

2017 NECPartial

in force since Oct 1, 2018

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

National Electrical Code, 2017 edition (Tennessee Electrical Installations rule, 0780-02-01) · Tenn. Comp. R. & Regs. 0780-02-01-.02

The Tennessee NEC record
IRCInternational Residential Code

2018 IRCPartial

in force since Jul 16, 2020 · Statewide, with exceptions

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

International Residential Code, 2018 edition (0780-02-23) · Tenn. Comp. R. & Regs. 0780-02-23-.02

The Tennessee IRC record
IFCInternational Fire Code

2021 IFCVerified

in force since Apr 17, 2025 · Statewide, with exceptions

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

International Fire Code, 2021 edition (0780-02-02) · Tenn. Comp. R. & Regs. 0780-02-02-.01(1)

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

2020 NFPA 855Verified

in force since Apr 17, 2025 · 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, 2021 edition, with Tennessee modifications (0780-02-02) · Tenn. Comp. R. & Regs. 0780-02-02-.01(1)

The Tennessee NFPA 855 record

Coming next

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

State or local

NECLocal governments may be authorized to perform electrical inspections (rule 0780-02-01-.20).
IRCTennessee applies the IRC statewide, with exceptions the record lists.
IRCLocal governments may exempt one- and two-family dwellings by a 2/3 vote of the governing body; renovations of existing one- and two-family dwellings are outside the statewide standards.
IFCTennessee applies the IFC statewide, with exceptions the record lists.

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

Go deeper

Tennessee laws that name residential energy storage systems

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

No Tennessee 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