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Chargers that paid for themselves

Four deployments across fleet, highway, residential and utility — each with the industry, the requirement, the configuration we shipped, and the number that proved it out.

ems-charge DC fast charger at a logistics fleet depot with electric vans
Case 01 · Logistics fleet

600+ kWh e-trucks charged at overnight rates.

Need: 73% of fleet operators rank energy procurement cost as their top concern — above charge speed. A depot has to refill large batteries without paying midday peak rates.

Solution: DC 150–400 kW chargers with OCPP 2.0.1, scheduled to charge off-peak and shaped against the depot's demand curve.

  • Result: fuel and maintenance costs down 25–40% versus diesel.
  • Result: 45-minute top-ups keep route flexibility without a mid-day charge.
ems-charge liquid-cooled ultra-fast charger at a highway hub at night
Case 02 · Highway corridor

More than 97% uptime on an AFIR corridor.

Need: AFIR requires 400 kW every 60 km along the TEN-T network, and the industry's 14% failure rate is a non-starter for a public corridor.

Solution: 240–360 kW liquid-cooled chargers with split power cabinets, hot-swappable modules and remote OTA for overnight fixes.

  • Result: more than 97% uptime across the network.
  • Result: 20 minutes to 80% keeps dwell time corridor-appropriate.
ems-charge AC wallbox chargers along an apartment garage wall
Case 03 · Residential condo

Load sharing without a grid upgrade.

Need: renters struggle to charge more than twice as often as homeowners, and a building's spare electrical capacity is the binding constraint.

Solution: AC 7–22 kW wallboxes with dynamic load balancing, OCPP per-unit billing and RFID access for each resident.

  • Result: full-building charging delivered without grid expansion.
  • Result: each tenant billed to their own meter and account.
ems-charge bidirectional charger at a utility V2G pilot site
Case 04 · Utility V2G

$3,359 per vehicle per year back to the grid.

Need: vehicles sit idle 96% of the time. A utility wants that parked capacity as a grid asset, not a cost center.

Solution: bidirectional chargers with ISO 15118-20 and virtual-power-plant aggregation, dispatched against real-time grid signals.

  • Result: $3,359 per car per year in energy revenue.
  • Result: zero battery degradation after one year of V2G cycling.

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