Companies charge fleet vehicles overnight as a routine, not a project: each vehicle is plugged in when it returns to the depot, it charges at modest AC power through the whole time it is parked, and a pre-departure check confirms every vehicle leaves ready. The routine matters more than the hardware. Fleets that plug in on arrival almost never think about charging again; fleets that plug in “later” are the ones with flat vans at 6 a.m.
Key Takeaways
- Overnight fleet charging is a routine: plug in on arrival, charge through the dwell, check before departure.
- Long dwell makes modest Level 2 power enough for most van duty cycles.
- Exceptions are planned, not improvised: an unassigned fast point and a written rotation rule.
- The pre-departure check is what turns a missed plug-in into a small problem.
The Routine, Stage by Stage
| Stage | What happens | Whose job it is |
|---|---|---|
| Return | The vehicle is parked in its bay and plugged in immediately, before the driver leaves | The returning driver; the rule is plug in first, paperwork second |
| The long middle | Charging runs through the dwell at Level 2 rates, often shared and scheduled so the site’s supply is never oversubscribed | The installation design and the operator’s platform, once set up |
| Pre-departure | Charge state is checked against the day’s routes; exceptions are spotted while there is still time to act | The dispatcher or first driver out, working from session records |
| Departure | Unplug, coil, go. The cable returns to its holder so the next return is a thirty-second job | The departing driver |
Why the Routine Settles on Overnight AC
The dwell does the heavy lifting. Vehicles parked for eight to twelve hours need only modest power to refill a day’s driving: the U.S. DOT puts Level 2 at 7-19 kW, delivering 10-20 miles of range per hour, which covers most van duty cycles long before morning. AC points are also the cheap end of depot hardware: U.S. DOE-cited figures for public sites put Level 2 at about $3,500 equipment plus $2,500 installation per connector, against $38,000-$90,000 plus $20,000-$60,000 for DC fast charging. A depot needs many points and few miracles, so it buys points.
Two shapes sit at the routine’s edges. A single DC unit handles the exceptions: the vehicle that came back late and leaves early, the midday top-up. And some fleets add opportunity charging at loading bays or customer sites. Neither replaces the overnight pattern; both exist because the routine has edges.
When the Night Breaks
The routine is designed for the nights that go wrong. A vehicle returns at midnight needing a full battery at five: the exception DC unit, or the highest-rate AC point, takes it, and the schedule reshuffles around it. A vehicle that was never plugged in is found at the pre-departure check, not at the gate, which is why the check exists. Where vehicles outnumber points, the routine adds a rotation rule: longest routes charge first and fully, short-route vehicles take what the remaining hours give, and the rule is written down so night staff are not improvising. The sizing maths behind the points themselves, energy against dwell, is worked in our guide to sizing depot AC chargers for vans.
The Hardware Behind the Routine
The EV-AC03201T is shaped for this pattern: two Type 2 connectors on one station, up to 43 kW shared (22 kW per connector), OCPP 1.6J for the operator’s platform and RFID so sessions belong to a vehicle or driver, in an IP54 floor-standing unit. The EV-ACT3204PE 22 kW three-phase wallbox covers single bays with RFID and app access. Neither installs the routine: the depot’s rules about plugging in on arrival do that, supported by the planning approach in our workplace charging program guide. Depot layouts start at our commercial charging page.
Frequently Asked Questions
Is it bad for fleet vehicles to sit plugged in all night?
No. A connected vehicle that has finished charging simply waits; the session is over. Our explainer on leaving an EV charging overnight covers the same question for home drivers. Fleets manage the battery through the vehicle’s own charge limits, not by unplugging at 2 a.m.
Who plugs the vehicles in?
Usually the returning driver, because the habit has to survive tired evenings and bad weather. Some depots use yard staff on late shifts. What matters is that the job is named in someone’s role, not left to whoever notices.
What if a vehicle returns with almost no charge and leaves first?
That is the exception path: the fastest point on site, which is why many depots keep one DC unit or one high-rate AC point unassigned by the standard routine.
Related Reading
- Fleet Depot Charging: How to Size AC Chargers for Vans and Light Commercial Vehicles
- How to Plan a Workplace EV Charging Program
- Can You Leave an EV Charging Overnight?
- How Do Commercial EV Charging Stations Work?
