Residential Electric Vehicle (EV) Requirements

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The Denver Energy Code (DEC) requires EV-ready spaces in new garages and carports. These requirements help ensure that homes are ready for EV charging now or in the future, supporting Denver’s climate goals and making it easier for residents to switch to electric vehicles.

The EV requirements in the 2025 Denver Energy Code include minor revisions to align with the Colorado State Model Electric Ready and Solar Ready Code and to simplify compliance. Requirements shown on this page apply to both the 2025 and 2022 Denver Energy Code unless otherwise indicated.

What is required?

If you're building a new home with a garage or carport or adding a new garage or carport to an existing home, the DEC requires that at least one EV-ready space be provided per dwelling unit. This means:

  • A 240-volt, 40-amp branch circuit must be installed.
  • The electrical panel must have a dedicated space for a two-pole circuit breaker, labeled “EV Ready.”
  • An outlet, receptacle, or EV charging connection must be installed at the EV-ready parking space.

These requirements apply to:

  • Single-family homes
  • Duplexes
  • Townhouses

Note: R-3 or R-4 occupancy buildings three stories or less must comply with the commercial EV charging requirements found in Section C405.13 of the Denver Energy Code.

 

What is different between the 2025 and 2022 Denver Energy Code?

In the 2025 DEC, the updated definition of “on-site parking space” limits the requirement to covered parking, such as garages and carports.

Under the 2022 DEC, an EV-ready space may be required for a new dwelling unit without a garage or carport if an uncovered parking space – such as a driveway or parking pad – is provided for the unit.

Requirement 2025 DEC  2022 DEC 
 EV-ready space required  Yes Yes
 Applies to uncovered parking (e.g., driveways, parking pads)  No Yes
 Applies to new garages or carports  Yes Yes
 Applies to additions/alterations  Only if adding a new garage or carport  If adding any new on-site parking
 Circuit size  240V, 40A  240V, 40A
 Panel labeling  “EV Ready”  “EV Ready”
 Outlet or receptacle required  Yes  Yes

Frequently Asked Questions (FAQs)

Q: Do I need to install an EV charger in my new home?

    A: No, but you do need to install the wiring and outlet so that a charger can be added later. This is called an EV-ready space.              Note: if the project does not include on-site parking, an EV-ready space is not required.

Q: What if I’m just building a detached garage or carport?

    A: You must include at least one EV-ready space with the required electrical infrastructure.

Q: Does this apply to remodels or additions?

    A:  For 2025 DEC, yes if adding a new garage or carport.

    A: For 2022 DEC, yes if adding new on-site parking, including uncovered spaces like parking pads.

Q: What exactly is an EV-ready space?

    A: It’s a parking space with:

  • A 240V, 40A circuit
  • A labeled space in the electrical panel
  • An outlet or receptacle where a charger can be plugged in

Q: Can I install a charger now instead of just making it EV-ready?

    A: Yes! You’re welcome to install a full EV charging station now, as long as it meets the electrical requirements.

 

 

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