Introduction: Automated Ports are Entering the Electric Era
With the growth of global logistics demand, ports are accelerating their automation and electrification transformation. More and more ports are deploying electric terminal trucks, AGVs, and electric stackers.
According to data from the International Port Technology Research Institute:
| Indicators |
2022 |
2025 |
2030 Forecast |
| Number of Global Automated Ports |
68 |
110 |
170+ |
| Electric Port Vehicles |
23,000 |
55,000 |
130,000+ |
| Port Charging Demand |
3.2GW |
7.5GW |
18GW |
However, with the increase in the number of electric devices, a new challenge has emerged:
Charging infrastructure cannot keep up with the growth rate of devices.
Therefore, port operators have begun to explore new energy solutions—Door Energy Mobile Electric Vehicle Charging.
I. The Biggest Challenge to Port Electrification: Charging Queues and Energy Bottlenecks
Port operations exhibit distinct peak periods. For example, when large container ships berth simultaneously, the demand for transport vehicles increases dramatically.
This means a large number of electric container trucks need to be charged within a short period.
Typical port energy demands are as follows:
| Port Equipment |
Single Charge Demand |
Daily Charges |
Daily Power Consumption |
| Electric Container Trucks |
250–350 kWh |
2 |
500–700 kWh |
| Automated Transport Vehicles |
200–300 kWh |
2 |
400–600 kWh |
| Electric Forklifts |
120–200 kWh |
2 |
240–400 kWh |
However, most ports still rely on fixed charging stations.
This leads to several problems:
| Problems |
Operational Impact |
| Vehicle Queues |
Increased Downtime |
| Insufficient Grid Capacity |
High Expansion Costs |
| Fixed Charging Locations |
Low Dispatch Efficiency |
| Long Construction Periods |
Limited Port Expansion |
Therefore, Door Energy's Mobile Electric Vehicle Charging has become a solution of increasing interest to ports.
Advantages
Explanation |
| Flexible Deployment |
Mobility between Different Yards |
| Rapid Recharge |
High-Power DC Charging |
| Reduced Queues |
No Need for Centralized Vehicle Charging |
| Reduced Investment |
No Need for Significant Grid Expansion |
Door Energy's mobile energy storage and charging system is designed specifically for this scenario.
Its core technologies include:
| Technical Parameters |
Specifications |
| DC Fast Charging Power |
Up to 420kW |
| Charging Interface |
CCS1 / CCS2 |
| Communication Protocol |
OCPP |
| AC Power Supply |
Industrial Equipment Power Supply |
In addition, the system can be recharged in two ways:
| Recharge Method |
Time |
| DC Charging Pile |
Approximately 1 hour |
| Industrial AC Power |
Approximately 2 hours |
III. Application of Door Energy Mobile Storage and Charging System in Ports
Door Energy's mobile storage and charging products were initially used for EV roadside assistance and outdoor industrial scenarios.
However, with the electrification of ports, this system is also very suitable for the port environment.
In ports, mobile storage and charging equipment can support:
| Application Equipment |
Usage Method |
| Electric Trucks |
DC Fast Charging |
| Automated Transport Vehicles |
DC Charging |
| Electric Stackers |
DC Charging |
| Electric Excavators |
AC Power Supply |
| Port Lighting |
AC Power Supply |
| Water Pump Equipment |
AC Power Supply |
Furthermore, the modular design offers significant advantages.
| Maintenance Indicators |
Traditional Equipment |
Door Energy |
| Fault Location |
Complex |
Fast |
| Repair Time |
Hours |
Tens of Minutes |
| Maintenance Costs |
High |
Low |
This enables the equipment to operate stably for extended periods in the high-intensity environment of ports.
IV. Case Studies: Data from Three Typical Ports
Case 1: Power Supply for an Automated Terminal Fleet
An automated terminal deployed:
| Equipment |
Quantity |
| Automated Transport Vehicles |
140 |
| Electric Trucks |
85 |
Daily Energy Demand:
| Indicator |
Value |
| Daily Power Consumption |
52MWh |
| Peak Demand |
11MW |
After Deploying Mobile Charging Equipment:
| Indicator |
Change |
| Queuing Time |
-63% |
| Vehicle Utilization Rate |
+18% |
Case 2: Power Supply for Port Yards
In the yard area, due to the distance from the power grid, fixed charging facilities are insufficient.
After Deploying Mobile Charging:
| Indicator |
Improvement |
| Equipment Downtime |
-42% |
| Operational Efficiency |
+21% |
## Case 3: Temporary Charging During Port Expansion
During the construction of a new terminal, mobile energy storage and charging systems were used as temporary energy stations.
| Indicators |
Traditional Methods |
Mobile Charging |
| Deployment Time |
8 months |
1 week |
| Investment Cost |
High |
Medium |
| Flexibility |
Low |
High |
V. Port Operational Efficiency Improvement
The core value of mobile charging lies in improving equipment utilization.
| Indicators |
Fixed Charging |
Mobile Electric Vehicle Charging |
| Queuing Time |
30 minutes |
5 minutes |
| Equipment Downtime Rate |
12% |
4% |
| Energy Dispatch Efficiency |
Medium |
High |
This means that ports can support more electric equipment without large-scale expansion of the power grid.
VI. Future Development Trends of Port Energy Systems
Future ports will form a hybrid energy network:
* Fixed charging stations
* Mobile charging equipment
* Port microgrids
* Renewable energy systems
Mobile charging equipment will play an important role in the following areas:
| Development Direction |
Description |
| Intelligent Dispatch |
AI Energy Management |
| Remote Monitoring |
OCPP Platform |
| Fleet Management |
Automated Charging Dispatch |
Therefore, Mobile Electric Vehicle Charging will become an important part of the port's energy system.
FAQ
Q1: What is Mobile Electric Vehicle Charging for ports?
A1:Mobile Electric Vehicle Charging refers to mobile charging systems that deliver power directly to electric trucks and port equipment instead of relying only on fixed charging stations.
Q2: Why do automated ports need mobile charging?
A2: Automated ports operate large fleets of electric vehicles. Mobile charging reduces charging queues and increases fleet efficiency.
Q3: How fast can a mobile EV charger charge port vehicles?
A3: High-power systems can support up to 420kW DC charging, allowing heavy vehicles to receive significant energy in a short time.
Q4: Can mobile charging support heavy equipment?
A4: Yes. Mobile charging systems can power electric terminal trucks, automated vehicles, excavators, pumps, and lighting systems.
Q5: Is Mobile Electric Vehicle Charging suitable for remote port areas?
A5: Yes. Mobile charging is ideal for remote yards where installing fixed infrastructure is difficult.
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