Commercial EV charging timelines are routinely underestimated. A project that feels like it should take six weeks commonly takes six months, and the parts that overrun are rarely the parts you can control. Understanding where the time actually goes is what lets you plan around it instead of being surprised by it.
⚠️ Time-sensitive: The Section 30C Alternative Fuel Vehicle Refueling Property Credit expires June 30, 2026 under the One Big Beautiful Bill Act (Public Law 119-21). Equipment must be physically placed in service by that date (not ordered, not permitted, not under construction). Long utility interconnection and transformer lead times mean projects started now may not make the deadline. After June 30, there is no federal EV charger tax credit.
Read this first if you are chasing the 30C deadline
"Placed in service" is the test, and it is unforgiving. A purchase order, an approved permit, equipment sitting on a pallet, or a half-trenched lot does not count. The chargers have to be installed, energized, commissioned, and capable of operating by June 30, 2026.
Work backward from that date with the phase estimates below. As of late May 2026, a straightforward Level 2 project on adequate existing service can still plausibly finish in time. A project that needs a utility service upgrade almost certainly cannot, because utility interconnection alone now routinely exceeds the time remaining. If your assessment shows a transformer or service upgrade is required, plan and budget the project on its own economic merits without assuming the 30C credit, and confirm credit treatment with a tax professional.
The full timeline, phase by phase
Phase 1: Pre-project (4–12 weeks)
- Electrical assessment and site evaluation: 2 to 4 weeks to schedule a qualified contractor, perform the assessment, and receive a written report.
- Contractor selection and proposal review: 2 to 6 weeks to collect two or three bids, compare line items, and negotiate a contract.
- Incentive applications: Many state grants and utility make-ready programs require pre-approval before work begins. Pre-approval commonly runs 4 to 16 weeks and frequently overlaps with the rest of Phase 1.
- Grant award cycles: Some programs award on quarterly cycles, others rolling. Missing a cycle means waiting for the next one.
Phase 2: Design and permitting (4–12 weeks)
- Engineering drawings: Larger projects need stamped electrical drawings for permit submission, typically 1 to 3 weeks.
- Permit review: Commercial electrical permit review times vary widely by jurisdiction:
| Jurisdiction type | Typical permit review (as of Q2 2026) |
|---|
| Fast / EV-experienced | 1–3 weeks |
| Average | 3–6 weeks |
| Backlogged | 6–12 weeks |
| High-volume major cities | 8–16 weeks |
- Utility interconnection (if required): This is where projects live or die. Anything that adds load beyond what your meter already carries triggers a utility review. Reported timelines as of Q2 2026:
| Utility action | Typical timeline (as of Q2 2026) |
|---|
| Simple load notification | 2–4 weeks |
| "Load letter" / capacity confirmation | 60–120 days |
| Service upgrade | 6–18 months |
| Transformer upgrade | 12–24+ months in constrained territories |
Get the utility load letter started before you pull the permit. Confirming whether a service upgrade is needed is the single biggest scheduling risk on any commercial charger project.
Phase 3: Equipment procurement (2–16 weeks)
Hardware lead times have stabilized from their worst, but they still vary by equipment class:
- Standard Level 2 from stock: 2 to 4 weeks
- High-demand or custom Level 2 configurations: 4 to 8 weeks
- DC fast chargers: 8 to 16 weeks (long-lead equipment)
- Load-management controllers and switchgear: 2 to 8 weeks
Order equipment as soon as the design is locked. Do not wait for permit approval; procurement should run in parallel with permitting, not after it.
Phase 4: Construction (2–4 weeks)
The physical work is usually the fastest phase once everything upstream is resolved:
- Electrical rough-in (conduit, panel, sub-panel): 3 to 10 days by scale
- Civil work (trenching, concrete, restriping): 3 to 7 days
- Charger mounting: 1 to 2 days
- Network commissioning and end-to-end testing: 1 to 2 days
- Inspection and sign-off: 1 to 5 days depending on inspector scheduling
Phase 5: Post-installation (1–3 weeks plus reimbursement)
- Final inspection: Inspectors are often booked 1 to 2 weeks out.
- Network activation: Pricing, access rules, and credential distribution.
- Incentive reimbursement: Post-installation rebate programs require documentation and processing, typically 4 to 12 weeks until payment lands.
Total timeline summary
| Project type | Realistic total (as of Q2 2026) | 30C deadline feasible? |
|---|
| Simple Level 2, no utility work, fast permitting | 10–16 weeks | Likely, if started now |
| Typical commercial Level 2 project | 16–28 weeks | Borderline |
| Project with state or federal grant application | 20–36 weeks | Unlikely |
| Project needing a utility service upgrade | 9–18 months | No |
| Project needing a utility transformer upgrade | 12–24+ months | No |
These ranges are illustrative and assume nothing goes wrong. Build a contingency buffer into any schedule tied to a hard deadline.
The delays that actually derail projects
Utility interconnection and transformer work. This is the leading cause of project-ending delays, and the utility controls it entirely. The 2026 transformer shortage has made it worse: multi-year lead times for larger units and many-month waits for routine distribution transformers are widely reported, driven by data center demand and constrained production of grain-oriented electrical steel. If your project needs the utility to set a transformer, that lead time is the project.
Permit backlogs. Fast-growing cities with strained building departments can add months with no warning.
Equipment stock-outs. DC fast chargers in particular have faced supply constraints; verify lead time in writing before you build a schedule around a delivery date.
Missed grant cycles. A quarterly award cycle missed by a week adds three months.
Contractor bandwidth. Good commercial EV contractors are in demand, and your preferred firm's start date may be weeks or months out.
Unexpected site conditions. Buried utilities, structural obstacles, and hard-to-trench soil surface during construction and are the most common cause of mid-project change orders.
How to compress the timeline
The order of operations matters more than raw speed. Run dependencies in parallel and front-load the slow, externally controlled items.
- Start the electrical assessment before final decisions are made, so you know on day one whether a utility upgrade is in play.
- Pull the utility load letter immediately; it gates everything else.
- File grant and make-ready applications before permits are approved (most programs allow this).
- Order equipment when the design is finalized, not when the permit clears.
- Hire a contractor with a track record in your specific jurisdiction, who knows the local permit process and inspectors.
- Ask about expedited permit review; many jurisdictions offer it for a fee.
- Sequence the work so permitting, procurement, and utility review overlap rather than stack end to end.
California note
California layers in 2026 Title 24 EV-ready and EV-installed requirements for new construction and major renovations, which can add design and review scope. Utility make-ready programs run by the major California utilities (under the CPUC transportation electrification framework) can fund infrastructure but add their own application and approval steps, and the utility's schedule typically drives overall project timing. Build the make-ready application into the front of your timeline, not the middle.
The bottom line
The physical install is the short part. The schedule is set by the slow, external dependencies: utility interconnection, transformer availability, permit queues, and grant cycles. Plan around those first, start them early, and run them in parallel. For anything depending on the 30C credit, the honest answer as of late May 2026 is that only projects on adequate existing service have a realistic path to placing equipment in service by June 30, and even those have no room for slippage.
Last factually verified: 2026-05-24 against IRS.gov (Section 30C guidance) and the IRS/AFDC Alternative Fuel Infrastructure Tax Credit pages, 2026 industry reporting on distribution and power transformer lead times (PV Magazine USA, Power Magazine), 2026 commercial EV charger permitting and utility interconnection timeline guidance, NEC Article 625 reference material, and California 2026 Title 24 and CPUC transportation electrification program documentation.
