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How Much Power Does a Commercial EV Charger Need?

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Rapid Growth of Commercial EVs Challenges Charging Infrastructure

As electrification accelerates, commercial EV adoption is growing faster than expected. When building charging stations, 'charging power' becomes a key factor affecting charging speed, infrastructure cost, and operational efficiency.
This article provides a comprehensive guide to understanding the power requirements for various commercial applications, along with practical selection tips and insights into industry trends.

Power Requirements by Scenario

Higher power isn’t always better—it must align with actual application needs.

Application Scenario

Recommended Power Range

Typical Vehicle Type

Notes

Office/Malls

7kW – 22kW

Patrol cars, property vehicles

Ideal for slow charging with overnight parking

Taxi/Logistics

60kW – 150kW

Ride-hailing, small logistics vans

Fast charging saves operation time

E-buses/Heavy Transport

180kW – 350kW+

Electric buses, heavy trucks

ltra-fast liquid-cooled chargers for large battery vehicles

Three Key Factors for Choosing the Right Power

· Max Charging Power Supported by the Vehicle: The BMS (Battery Management System) determines the maximum input power. Exceeding this adds no value and increases costs.

· Operational Frequency and Charging Time Window: High-usage fleets need fast charging; low-frequency parking scenarios can opt for slower charging to save cost.

· Power Grid Capacity at Site: For limited grid access, consider pairing with energy storage or using dynamic power distribution.

Trends in High-Power Fast Charging

The rise of electric heavy trucks and large commercial vehicles is driving high-voltage charging technologies:

· 800V Platform + Liquid Cooling: Enables over 350kW output while maintaining safe cable temperatures for large battery vehicles.

· Smart Power Distribution: Multi-gun chargers dynamically allocate output based on real-time vehicle needs.

· OCPP Platform Integration: Enables remote control, diagnostics, billing, and energy usage optimization for digitalized operations.

Real-World Case Studies

Location

Vehicle Type

Charger Power

Avg. Charging Time

Shanghai Bus Station

E-bus (250kWh)

240kW liquid-cooled DC charger

Approx. 35 mins to 80%

Jiangsu Logistics Park

Light-duty delivery van

60kW air-cooled DC charger

Approx. 45 mins

Guangzhou Taxi Hub

EV Taxi (60kWh)

120kW air-cooled DC charger

Approx. 25 mins

Europe Freight Route

Heavy truck (800kWh)

350kW liquid-cooled ultra-fast charger

50 mins to 70%

Conclusion: Match Power to Real-World Needs for Efficient Charging

The optimal charger power isn’t always the highest available—it must match your vehicle type, usage frequency, and power access. Proper configuration lowers energy waste, reduces downtime, and maximizes vehicle efficiency—key for building a green, reliable commercial EV network.

Contact Us to Customize Your EV Charging Station

· Planning a logistics fleet charging station?

· Operating electric buses or heavy trucks?

· Looking for OCPP-compatible DC chargers?

Contact us now to get a tailored solution with technical specs and deployment plans.


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