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 Colorado

Which codes apply? In Colorado, residential energy storage systems fall under the 2026 NEC (statewide minimum), the 2024 IRC (state buildings only), the 2024 IFC (state buildings only), 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 Colorado enforces for each code that governs the product, and the part of the code that does.

NECNational Electrical Code

2026 NECVerified

in force since Jul 15, 2026 · Statewide minimum

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

State Electrical Board Rules, Rule 1.5 (2026 National Electrical Code) · 3 CCR 710-1, Rule 1.5; C.R.S. 12-115-107(2)(a)

The Colorado NEC record
IRCInternational Residential Code

2024 IRCPartial

State buildings only

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

Office of the State Architect, Building Code Compliance Policy Exhibit A (Rev. 10/2026)

The Colorado IRC record
IFCInternational Fire Code

2024 IFCPartial

State buildings only

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

8 CCR 1507-101; C.R.S. 24-33.5-1203.5

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

2020 NFPA 855Lead only

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.

DFPC adopted codes (state-regulated buildings); local jurisdictions adopt their own fire code · 8 CCR 1507-101

The Colorado NFPA 855 record

Coming next

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

State or local

NECColorado sets the NEC as a statewide minimum, so a city or county may enforce a newer edition.
NECStatute lets local governments enforce more stringent electrical standards than the board’s minimum, if they send the board a copy.
IRCColorado applies its IRC edition to state buildings only; cities and counties set their own.
IRCColorado has no statewide building code; counties and municipalities adopt their own.
IFCColorado applies its IFC edition to state buildings only; cities and counties set their own.
IFCLocal governments and fire districts adopt their own fire codes.

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

Go deeper

Colorado laws that name residential energy storage systems

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

No Colorado 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