Top 5 common mistakes ev chargers applicants make

Mistake 1: Hiring an Installer Who Can't Legally Pull the Permit

What people do wrong: Property owners hire an EVSE equipment vendor, a solar company, or a general handyman to install the charger. The vendor may be competent with the hardware but isn't a licensed electrical contractor — so they either can't pull the permit at all, or they quietly skip it.

Why it costs you: In Alabama, Alaska, Arizona, Arkansas, and California, the permit must be obtained by a licensed electrical contractor. Alabama Code § 34-36-1 et seq. requires an ABEC-licensed electrical contracting company under a master electrician's supervision. Alaska requires the contractor's license number on the permit application under AS 18.60. Arizona requires a C-11 (Electrical) license through the ROC under A.R.S. § 32-1151. Arkansas follows Ark. Code Ann. § 17-28-101 et seq.

If an unlicensed party does the work without a permit, you're looking at:

• Stop-work orders and mandatory removal of installed equipment
• Re-inspection fees: typically $75–$300 per re-inspection, varies by AHJ
• Delays of 2–6 additional weeks while you find a licensed contractor to redo or certify the work
• Potential liability if the installation causes a fire or insurance claim

The fix:

1. Before signing any contract, ask for the installer's state electrical contractor license number.
2. Verify it directly: ABEC lookup (Alabama), DLSS license search (Alaska), ROC license lookup (Arizona), ADLL verification (Arkansas), CSLB license check (California).
3. Confirm the contractor — not a subvendor — will be the one pulling the permit.

Mistake 2: Assuming One Permit Covers Everything

What people do wrong: Applicants pull a single electrical permit and assume they're done. For commercial projects, multi-family buildings, or DC Fast Charger installs, there's almost always a second (or third) permit required.

Why it costs you: In Arkansas and California, DCFC installations require both an electrical permit and a building permit. Arkansas commercial projects often also trigger fire marshal review. California DCFC installations require utility coordination on top of both permits. Skipping the building permit means your final electrical inspection can be held up — or the building department can issue a stop-work order even after the electrical work passes.

Timeline impact: discovering a missing building permit mid-project typically adds 3–8 weeks depending on the jurisdiction's plan review queue. Plan review fees for commercial projects run $200–$2,000+ depending on project scope and AHJ.

The fix:

Call your city or county building department before submitting anything. Ask specifically: "Does this project require a building permit in addition to an electrical permit?" Get the answer in writing or via email.

Mistake 3: Not Checking Panel Capacity Before Applying

What people do wrong: Applicants submit permit applications assuming their existing electrical panel can handle the new circuit. The inspector or plan reviewer flags an undersized panel, and the project scope — and cost — doubles overnight.

Why it costs you: A Level 2 charger typically requires a dedicated 240V, 40–50A circuit. A DCFC can demand 100A or more at 480V. If your panel is already at or near capacity, you need a panel upgrade before the charger circuit can be added. Panel upgrades in residential settings run $1,500–$4,500 depending on the upgrade size and local labor rates. In commercial settings, service upgrades can run $5,000–$30,000+.

Discovering this after permit submission means:

• Revised plans and resubmission (add 1–3 weeks)
• Additional permit fees for the panel upgrade work
• Possible utility coordination if the service entrance itself needs upgrading

The fix:

1. Have your licensed electrical contractor perform a load calculation before submitting the permit application.
2. If a panel upgrade is needed, include it in the original permit scope — one submission is faster than two.
3. In California, where Gov. Code § 65850.7 requires approval within five business days for complete residential applications, an incomplete application (missing load calc documentation) resets that clock.

Mistake 4: Budgeting Only for the Permit Fee and Missing the Real Cost Drivers

What people do wrong: Applicants see a permit fee estimate of $100–$200 and budget accordingly. They don't account for plan review fees, inspection fees, re-inspection fees, or the cost difference between jurisdictions.

Why it costs you: Permit fees vary significantly by AHJ. In California, Gov. Code § 65850.7 caps fees at the actual documented cost of the permit service — but "actual cost" in a high-cost jurisdiction can still be $400–$800 for a residential Level 2 install. Arizona has no statewide fee cap; jurisdictions set their own schedules, and commercial plan review fees can reach $1,500–$3,000 for larger projects. Arkansas jurisdictions like Little Rock, Fayetteville, and Fort Smith each have distinct fee schedules with no state cap.

Realistic total permit-related cost ranges by project type:

The fix: Call the building department and ask for the fee schedule before budgeting. Ask specifically about plan review fees (often separate from the permit fee), inspection fees, and re-inspection fees. Get the current fee schedule in writing — many departments post them online but don't always keep them current.

Mistake 5: Skipping Utility Coordination for DCFC and High-Load Installs

What people do wrong: Applicants complete the permit process, finish the installation, and then discover the utility won't energize the service without a separate interconnection or service upgrade review. The charger sits idle for weeks or months.

Why it costs you: DC Fast Chargers draw enough load that utilities in Alabama, Alaska, Arkansas, and California all require pre-coordination before the installation is energized. California DCFC projects require utility coordination as a standard step alongside the building and electrical permits. Alaska DLSS notes that utility pre-coordination is necessary for DCFC due to high load demand. Skipping this step doesn't just delay energization — it can require re-engineering the installation if the utility's interconnection requirements differ from what was permitted.

Utility review timelines range from 2 weeks to 6+ months for large commercial DCFC projects, depending on whether a transformer upgrade or new service entrance is needed. Transformer upgrades alone can cost $10,000–$50,000 and are typically the utility's timeline, not yours.

The fix:

1. Contact the utility at the same time you begin the permit process — not after.
2. Ask for a load study or service capacity review in writing.
3. For commercial DCFC, request the utility's interconnection application and timeline estimate before finalizing your project schedule.
4. Build utility review time into your contract milestones — don't promise a go-live date until you have written confirmation from the utility.