A fleet yard installing four chargers this year is often planning for three times that number within two. That growth curve is the real difference between fencing an EV depot and fencing the diesel yard it replaces. A standard chain-link specification assumes the site will look largely the same in five years. An EV depot rarely does.
Once chargers go in, the fence is no longer protecting only vehicles and cargo. It is also protecting transformers, switchgear, service panels, and charging infrastructure. The site also gains a new class of routine visitor: the electrician servicing that equipment.
How an EV Charging Depot Differs From the Fleet Yard It’s Replacing
| Feature | Diesel fleet yard | EV charging depot |
| Perimeter protects | Vehicles and cargo | Vehicles, cargo, and electrical infrastructure |
| Highest-value asset | Usually the vehicles | Often the transformers and switchgear |
| Site footprint | Largely fixed once built | Expands as chargers are added |
| Routine access | Drivers and dispatch staff | Drivers, dispatch staff, and an electrical contractor |
The access row is often the one that creates problems later. A gate designed only around driver flow can become an obstacle when technicians need recurring access to electrical equipment.
The Fence Around the Equipment, Not Just the Property
Every EV depot still needs a standard commercial perimeter: 8-foot galvanized or vinyl-coated chain link, automated gates, and access control matched to fleet operations.
What changes is the second fence line around the electrical equipment itself. The DOE’s Joint Office physical security guidance recommends fencing with locked access around transformers, switchgear, and related electrical infrastructure to keep unauthorized individuals away from energized equipment.
Code becomes more specific as the voltage increases. Under NEC 110.31, outdoor equipment above 1,000 volts requires a fence at least 7 feet tall (or 6 feet plus 1 foot of barbed wire) with minimum clearances that increase with voltage.
For most depots, the initial installation may be below that threshold, but a later service upgrade can change the requirement. Verifying future electrical plans before the fence is built is usually less expensive than modifying a completed enclosure.
Material selection matters as well. Chain link or semi-open slatted panels generally work better around transformers and switchgear than fully solid privacy panels because they allow ventilation and make visual inspections easier.
Bollards and the Space Between Traffic and the Charger
Fencing protects equipment from unauthorized access. Bollards protect it from vehicle impact.
DOE guidance recommends wheel stops or concrete-filled bollards in front of charging equipment to prevent accidental strikes.
The key is placement:
- Install bollards between the drive lane and the charger, not behind the charger.
- Maintain clearance for technician access doors.
- Lay out bollards with future charger rows in mind to avoid re-pouring concrete during expansion.
Where the Fence Plan Has to Match the Electrical Plan
The fence contractor is rarely first on an EV depot project. Conduit runs, transformer pads, grounding, and utility coordination are usually established before fence installation begins.
| Detail | Why it matters |
| Working clearance | NEC 110.26 requires 3 to 4 feet of clear space in front of equipment operating at 151 to 600 volts. |
| Grounding | Chain link near energized equipment may need to be bonded to the site’s grounding system. |
| Gate and hinge placement | Improper placement can block equipment doors and service access. |
| Gate width | Future transformer or switchgear replacements may require larger access openings. |
On most projects, the biggest scheduling advantage comes from having one team coordinate the fence line, gate automation, and access control with the electrical contractor, rather than multiple vendors working independently.
Permits and Utility Locates Across a Multi-State Footprint
Permit requirements vary across Virginia, Maryland, Washington, D.C., and North Carolina:
- Richmond, Virginia: Fences are exempt from a building permit unless required for pedestrian safety or as a pool barrier. Electrical work still needs its own trade permit through the city’s Online Permit Portal.
- Northern Virginia (Fairfax County and similar jurisdictions): Fences are generally exempt from a permit, but zoning still regulates height and placement, so a zoning check is often needed anyway.
- Montgomery County, Maryland: A permit is required for any fence, filed via the county’s ePlans system, and it can’t encroach on a drainage or utility easement without separate approval, worth confirming early if the enclosure sits near one.
- Washington, D.C.: Commercial fences need a Department of Buildings permit. Street-facing fences in a commercial zone can go up to 10 feet, versus 7 feet residential, and review timelines vary by project scope.
- Dunn, North Carolina: The city requires a zoning permit before the building permit. In unincorporated Harnett County, residential fences aren’t regulated, but commercial projects still need approval based on size and placement.
Utility locates are handled separately:
| State | One-call program | Advance notice required |
| Virginia | Virginia 811 | 3 working days |
| Maryland & D.C. | Miss Utility | 2 full business days |
| North Carolina | NC811 | 3 working days |
For every Hurricane Fence project, we place the utility locate call and pull the permits ourselves. It’s part of how the job gets scheduled correctly the first time, not an add-on service.
Frequently Asked Questions
Does the fence around an EV charger need a separate permit?
Often yes. A perimeter fence and a locked electrical-equipment enclosure can be regulated separately, even on the same site.
How tall does the fence need to be around a depot’s transformer or switchgear?
It depends on the voltage. For equipment above 1,000 volts, NEC 110.31 requires at least 7 feet of fencing, or 6 feet plus 1 foot of barbed wire.
What happens if our depot adds chargers after the fence is already built?
That’s the scenario worth planning for at the start. A gate sized with future equipment in mind can usually be reused; one that wasn’t often has to be rebuilt. We ask about your expansion timeline during the site walk, specifically to avoid that.
Planning an EV Depot or Fleet Electrification Project?
Hurricane Fence has been building commercial and high-security fencing across Virginia, North Carolina, D.C., and Maryland since 1994, with 3,143 projects completed in 2025 alone. We’re a Class A Contractor, licensed, bonded, and insured, with an in-house gate and access-control division supporting fleet and infrastructure projects.
If you’re planning an EV charging depot or a fleet yard conversion anywhere in our service area, we’ll walk the site with your electrical contractor, pull the permits, place the utility-locate call, and request a free estimate in person. No phone quotes, no online estimates. See our full range of commercial fencing services for what else we handle.
