Plan EV charging infrastructure with a Gantt chart. Covers NEVI compliance, utility upgrades, equipment procurement, civil construction, and network commissioning.
Electric vehicle charging infrastructure is the fastest-growing segment of energy project development in the United States. Fueled by the $5 billion NEVI (National Electric Vehicle Infrastructure) Formula Program and state-level deployment mandates, project developers, utilities, and fleet operators are racing to install DCFC (DC Fast Charging) corridor stations, depot charging systems, and urban charging hubs at unprecedented scale. Yet despite the apparent simplicity of plugging a charger into a wall, commercial EV charging projects routinely take 18 to 36 months from site selection to ribbon-cutting — and the schedule risks are highly predictable. A Gantt chart built around the real critical path keeps charging network projects on schedule and out of compliance trouble.
The core problem is a mismatch between the speed at which developers move and the speed at which utilities respond. A DCFC station serving four 150 kW chargers demands 600 kW to 1,000 kW of electrical capacity — equivalent to a small commercial building. Most candidate sites on the Interstate Highway System (truck stops, travel centers, fast-food parking lots) are served by small transformers sized for lighting and HVAC, not megawatt-scale EV loads. The utility interconnection process for that service upgrade — new primary service line, pad-mounted transformer replacement or addition, underground conduit — can take 6 to 24 months in congested utility service territories. Every other phase of the project is fast by comparison. If the Gantt chart does not front-load the utility application, that upgrade becomes the project-ending critical path.
NEVI compliance imposes specific site selection constraints: stations must be located on designated Alternative Fuel Corridors (AFC), primarily the Interstate Highway System; stations must be sited within one mile of the highway exit; a minimum of four DCFC ports at 150 kW each is required; and a 97.5% operational uptime requirement applies after commissioning.
Site due diligence covers:
File the utility service application immediately after site control is established — do not wait for permits or design completion. In many utility territories, service upgrade queue times are measured in months, and the clock does not start until the application is formally submitted.
The interconnection process for a large commercial DCFC station typically involves:
On the Gantt chart, the utility construction bar runs in parallel with permitting, design, and equipment procurement. COD cannot occur until utility energization is complete. If utility construction slips, everything else waits.
Commercial DCFC stations require multiple permit streams that can be pursued in parallel:
Civil and electrical design can proceed in parallel with permitting. Key design decisions:
EVSE equipment procurement is a moderate-lead-time item: 4 to 8 months for most manufacturers. The Gantt chart should show equipment delivery timed to arrive after civil construction completes the concrete pads, conduit stub-outs, and service entrance installation — equipment arriving early has nowhere to go and creates site security and damage risk.
Fleet and depot charging projects have different procurement dynamics: Level 2 EVSE equipment (for overnight fleet charging) has shorter lead times (2 to 4 months), but power management systems and smart charging software integrations require additional configuration time.
Site construction follows utility energization of primary service (or proceeds in coordination with it). Typical construction sequence:
For fleet depot charging, add: power management controller installation, network communications wiring, and integration with fleet management software.
EVSE commissioning involves both electrical testing and network software integration:
For a typical 4-port DCFC corridor station, the critical path runs: site selection → utility application → utility service upgrade construction → final electrical connection → commissioning → open. Permitting, design, and equipment procurement have float relative to the utility upgrade timeline in most projects.
For fleet depot charging, the critical path is typically: utility application → design → equipment procurement → civil construction → power management integration → go-live. Utility upgrade timelines are shorter for lower-power depot charging (typically 200 to 400 kW for a 20-port Level 2 depot).
Key milestones to mark on the Gantt chart:
Skipping utility pre-screening before lease execution: Developers sign long-term leases on sites where the utility upgrade cost is prohibitive or the timeline exceeds the project's financing constraints. Pre-screen utility capacity before committing to a site.
Serial permitting: Permit applications submitted sequentially (building permit first, electrical permit after approval) rather than in parallel add 3 to 6 months unnecessarily.
NEVI grant delays not accounted for: State NEVI programs vary enormously in processing speed. Conservative Gantt charts show grant award on the critical path with a realistic range, not an optimistic best case.
Equipment ordered too late: EVSE equipment ordered after permits are issued (rather than concurrent with permitting) pushes equipment delivery past civil construction completion, extending the schedule by 4 to 6 months.
A Gantt chart for EV charging network deployment turns an 18 to 36 month process into a sequence of manageable, trackable milestones. The tool is especially valuable for multi-site corridor programs where dozens of stations are in various stages simultaneously — the program Gantt chart shows which sites are on the critical path, which have schedule float, and where utility upgrade delays are creating bottlenecks across the portfolio.
Use gantt-chart.io to build your EV charging deployment schedule. Import your site list, map the utility application and construction timelines for each location, set dependencies between permitting, procurement, and civil work, and share the live schedule with your utility partners, EPC contractors, and grant administrators in a single click.