Against the backdrop of accelerated global electrification, the number of electric vehicles (EVs) continues to grow. According to data from the International Energy Agency (IEA), the global EV fleet exceeded 40 million vehicles in 2024 and is projected to surpass 200 million vehicles by 2030. However, charging infrastructure is significantly lagging behind.
Traditional charging models heavily rely on fixed parking spaces and grid expansion, which presents significant bottlenecks in urban areas, industrial sites, and roadside assistance scenarios. Therefore, a brand-new solution is emerging-the Mobile EV Charger.
Door Energy is redefining the boundaries of charging services through a "mobile charging station + shared dispatch" model.
I. Why are Traditional Charging Models Failing?
1. Structural Problems of Fixed Charging Stations
Current charging networks primarily rely on fixed charging stations, but this model has significant shortcomings:
|
Problem Type |
Specific Manifestations |
Impact |
|
Parking Space Binding |
Requires a fixed parking space |
Low utilization rate |
|
Grid Limitations |
High expansion costs |
Long deployment cycle |
|
Space Limitations |
Inability to retrofit old parking lots |
Insufficient coverage |
|
Peak Hour Congestion |
Severe queuing |
Poor user experience |
Furthermore, fixed charging stations are almost non-existent in scenarios such as highways, remote areas, and construction sites.
2. Data illustrating the severity of the problem
* In Europe, on average, there is only one charging station for every 12 EVs
* Charging wait times in some US states can reach 30-90 minutes
* Over 35% of EV users have experienced "charging anxiety"
Therefore, the industry urgently needs more flexible solutions.
II. How does Door Energy define "shared charging"?
Door Energy's core concept of "shared charging" is:
> Let electricity find the car, not the other way around.
Core Components
* Mobile EV Charger
* Intelligent Dispatch Platform (Supports OCPP)
* Multi-Scenario Power Supply Capability (DC+AC)
Technical Features
|
Module |
Parameters |
|
DC Fast Charging Power |
|
|
Standard Interface |
CCS1 / CCS2 |
|
Communication Protocol |
OCPP |
|
AC Output |
Supports power supply for engineering equipment |
|
Maintenance Structure |
Modular Design |
Compared to traditional charging stations, this model is closer to "Energy-as-a-Service".
III. How does mobile energy storage and charging support "charging without a parking space"?
1. Flexible Deployment Capabilities
Door Energy's Mobile EV Charger can be quickly deployed in multiple scenarios:
* Roadside Assistance
* Industrial Construction Sites
* Temporary Events
* Remote Areas
2. Multiple Energy Supply Methods
|
Recharge Method |
Time |
|
DC Fast Charging |
Approx. 1 hour |
|
AC Grid Charging |
Approx. 2 hours |
This "dual energy supply mode" ensures continuous operation.
3. Multi-Functional Functionality
In addition to charging electric vehicles, it can also power the following devices:
* Electric Excavators
* Water Pump Systems
* Temporary Lighting
This makes it extremely valuable in industrial settings.
IV. Autonomous Charging Robots: The Ultimate Form of Shared Charging
Door Energy has launched autonomous mobile charging robots in scenarios such as parking lots, further improving sharing efficiency.
Standard Workflow
|
Steps |
Description |
|
1 |
User initiates charging request |
|
2 |
System locates vehicle |
|
3 |
Device drives automatically |
|
4 |
Automatic/manual connection to charging |
|
5 |
Returns to standby upon completion |
Technical Advantages
* Automatic navigation system
* Parking space map recognition
* Robotic arm connection (or manual assistance)
* Multi-vehicle dispatch capability
Practical Value
* No fixed charging pile required
* Improved parking space utilization
* Reduced human intervention
V. Comparison with Traditional Charging/Rescue Methods
1. Efficiency Comparison
|
Mode |
Response Time |
Charging Time |
Flexibility |
|
Towing Service |
1-3 hours |
None |
Low |
|
Fixed Charging Pile |
Queuing |
30-120 minutes |
Low |
|
Mobile EV Charger |
Instant dispatch |
<1 hour |
Extremely high |
2. Cost Comparison
|
Project |
Fixed Charging Station |
|
|
Initial Investment |
High |
Medium |
|
Operation and Maintenance Costs |
High |
Low |
|
Land Costs |
High |
None |
|
ROI Period |
3-5 years |
1-2 years |
As can be seen, mobile charging has a more attractive business model.
VI. Typical Application Scenarios (High-Conversion Focus)
1. Roadside Assistance (Core Scenarios)
* Instant EV charging after breakdown
* Avoid towing fees (average savings of $150-$300 per trip)
* Improved rescue efficiency
2. Industrial and Construction Scenarios
* Power supply in off-grid environments
* Replacement for diesel generators (reduces carbon emissions by approximately 30%+)
* Supports continuous operation
3. Heavy Truck and Fleet Operations
* High power requirements (420kW offers significant advantages)
* Reduced downtime
* Improved operational efficiency
4. Temporary Events and Remote Areas
* Music festivals and sporting events
* Power supply in rural/mountainous areas
* Emergency energy security
VII. Business Models for Shared Charging
1. Pricing Models
* Charged per kWh
* Charged per service session
* Subscription (Fleet)
2. Revenue Model
|
Model |
Revenue Streams |
|
B2B Fleets |
Long-Term Contracts |
|
Government Projects |
Emergency Procurement |
|
Industrial Clients |
Project-Based Fee Collection |
|
Parking Lots |
Revenue Sharing Model |
3. Market Potential
* The global mobile charging market is projected to reach $15B+ by 2028
* CAGR is approximately 20%-25%
VIII. Why is Door Energy More Trustworthy?
Experience
* Deeply rooted in the mobile energy storage and charging field
* Verified in multiple application scenarios
Expertise
* Supports OCPP protocol
* High-power DC fast charging technology
Authoritativeness
* Designed for the European and American markets
* Complies with mainstream charging standards (CCS1/CCS2)
Trustworthiness
* Modular design, low maintenance cost
* Stable and reliable, adaptable to complex environments
IX. Future Trends: From "Recharging" to "Energy Network"
The Mobile EV Charger is not just an emergency tool, but also a crucial node in the future energy network:
* Distributed energy storage system
* Component of a microgrid
* Intelligent energy network dispatch
Future cities may no longer rely on fixed charging stations, but rather be composed of mobile energy nodes.
X. FAQ
Q1: How fast does the Mobile
