ChargeWheel
For fleet operators

You've hit your depot's power ceiling. We can raise it.

A 1.5 MW service supports four 350 kW chargers. UpGrid lets the same service run twenty — same bill, 5× the throughput.

See your savingsTalk to an engineer
ChargeWheel DC fast charger in a fleet depot powering a Porsche Taycan
Your depot today

Your service caps your fleet plan.

The utility service that powers four chargers today won't power twenty tomorrow. Expanding it means years of interconnect queue, transformer lead time, and switchgear rebuild — plus demand charges that scale with peak draw, not energy delivered.

4
Chargers from 1.5 MW

At 350 kW each — the utility limit on direct grid power.

$22K/mo
Demand charges

Peak-pricing penalty on a four-charger depot at $20/kW·mo.

4–10 yr
Capacity expansion

Utility timeline to add the megawatts your fleet plan needs.

The depot daily cycle

The battery does the heavy lifting. The grid stays flat.

UpGrid doesn't ask the utility for more power — it buffers what you already have. The battery charges while chargers are idle and dispatches when drivers plug in. Meter stays smooth; your operations see fast charging on demand. No fixed service at all? See Mobile EV Charging.

A day at your depot
24 h · battery buffered
06:00
12:00
18:00
00:00
06:00
Charger demandGrid draw
18:00 · demand-charge peak held
06 – 09

Top off

Off-peak pricing. Most chargers idle. UpGrid pulls slow and steady.

09 – 17

Peak charging

Battery and grid run in tandem. UpGrid OS dispatches based on session forecasts.

17 – 21

Demand-charge guard

Utility's peak window. Battery covers spikes so the meter never crests.

21 – 06

Recharge

Lowest tariff window. Full battery refill while the depot sleeps.

System architecture

One AC tie-in. One battery. Twenty fast chargers.

UpGrid sits between your utility service and your DC fast chargers. AC comes in from the meter, gets converted once, lives on the DC bus until a driver plugs in. No second meter, no extra utility approval. See the full cabinet spec on UpGrid BESS.

Depot single-line diagram
1.5 MW in · 7.5 MW effective out
Utility service
1.5 MW · 480 V AC
Existing
meter
UpGrid BESS
500 kW · 1.5 MWh
PCS
SiC · 500 kW
LFP battery
1.5 MWh · 280 Ah
Supercap
< 1 ms
Charges off-peak · dispatches on demand
800 V DC bus
Charger 120 × DC fast charger · 60 – 350 kW eachCharger 20
One AC tie-in
480 V
Flat grid draw
No peak
Clean DC to chargers
800 V
Session SLA
Guaranteed
Customer

Running in the field.

Depots picked UpGrid when they needed more charging throughput than their utility service could deliver.

Porsche
In the field

Porsche

Battery-buffered DC fast charging at a Porsche customer-facing deployment — charging brand-new Taycans on the same utility service that used to cap session count.

The charger lineup

A full ETL-certified charger lineup.

Mix and match across charger sizes to fit dwell time. Light-duty fleets run on 60 kW dispensers; long-haul corridors run on 350 kW. All models share the same payment, OCPP, and remote-management stack — see the full family on EV Chargers.

Light fleet · CW 60
Output power
60 kW
Connector
CCS1 / NACS
Voltage range
200–1000 V DC
Use case
Vans, light trucks
Certification
UL 2202
Standard · CW 150
Output power
150 kW
Connector
CCS1 / NACS
Voltage range
200–1000 V DC
Use case
Buses, mid-fleet
Certification
UL 2202 + CSA
Heavy duty · CW 350
Output power
350 kW
Connector
CCS1 / NACS / CHAdeMO
Voltage range
200–1000 V DC
Use case
Class-8 trucks, transit
Certification
UL 2202 + CSA + ETL

Full lineup spans CW 60 through CW 350M. All models OCPP 2.0.1 native, payment terminals optional, ISO 15118 plug-and-charge ready.

Your savings

Model your depot.

Adjust the inputs to match your site. The numbers update live. Defaults start from a typical 1.5 MW transit depot.

Your inputs
1.5 MW

Existing utility service at the depot

40%

Share of time chargers actively dispense at rated power

$0.40/kWh
$20/kW·mo

Utility peak demand charge

5.0×

Effective grid power multiplier with UpGrid

Estimated impact
Chargers online
+17
Today
4
With UpGrid
21
Annual charging revenue
+8.3M
Today
$1.96M
With UpGrid
$10.30M
Vehicles served per day
77 → 403
Demand-charge savings vs comparable expansion
What it would cost to serve the same fleet on a larger grid connection
$1.44M
Total annual value
$9.78M
Payback on UpGrid system
1 mo
Or email these results directly
Next step

Send us your depot profile.

Share your tariff, fleet schedule, and dwell-time pattern. You'll get a system size, deployment timeline, and 5-year ROI within a week.

Your note routes straight to our engineering team.

FAQ

Questions fleet operators ask.

If we missed yours, it's probably answered in a 30-minute call with our engineering team.

How many DC fast chargers can I run on a 1.5 MW utility service with UpGrid?
Up to twenty 350 kW chargers on a 1.5 MW service. The behind-the-meter BESS buffers demand charges and burst capacity, so the utility sees a flat draw while your chargers see the full power drivers expect — even when every dispenser is occupied.
What happens to charging performance during peak demand windows?
UpGrid OS defends a site-specific demand-charge ceiling automatically. During peak windows the battery supplies the excess load while the meter stays below the ceiling. Chargers maintain SLA throughout; there's no throttling or session interruption.
Do I need a utility upgrade or interconnection approval to deploy UpGrid?
No. UpGrid sits behind your meter and runs on your existing utility service. Deployment doesn't require a new interconnection, transformer replacement, or AC switchgear rebuild — only a standard AHJ permit for the BESS cabinet itself.
Which DC fast chargers are supported?
ChargeWheel's ETL-certified charger lineup spans CW 60 through CW 350M — light-duty to Class-8 heavy-duty. All models support OCPP 2.0.1, CCS1/NACS connectors, ISO 15118 plug-and-charge, and integrate natively with UpGrid OS.