Today, the rapid deployment and upgrading of EV charging and battery-swapping infrastructure across China is accelerating.
The PV + Storage + EV Charging integrated energy station has become a key development direction in the new energy and integrated energy sector.
Whether in urban commercial districts, residential communities, or county-level and rural locations, intelligent PV-storage-charging stations are being deployed at scale.
Against this backdrop, GCEVO Energy, in collaboration with a local power utility company, has developed a benchmark demonstration project, delivering stable and reliable operational performance and providing a mature reference model for large-scale replication of PV + Storage + EV Charging systems.
At the core of this proven solution lies a high-performance multi-port grid-tied Power Router.
System Architecture
In this project, the equipment adopts a mature four-port standardized platform architecture, including:
- 1* AC grid bidirectional converter port
- 1*PV input port
- 1* energy storage port
- 1* DC load port
Through a comprehensive system design, advanced intelligent energy scheduling strategy, and multi-layer safety protection, the system ensures safe, stable, efficient, and economically optimized long-term operation of the integrated PV-storage-charging station.
Intelligent Energy Management
The PV + Storage + DC Power Router operates in a multi-energy hybrid grid-connected mode, enabling:
- Stable DC bus regulation
- Intelligent battery charge/discharge management
- Charging/discharging energy statistics
- Real-time operation data visualization and storage
- Fault alarm and protection handling
Energy Dispatch Strategy
The system continuously monitors operational parameters of all ports and loads, and manages energy according to priority rules:
On-Grid mode:
- When PV output ≥ load: PV supplies load first; excess energy charges storage
- When storage is full: surplus power is exported to the grid
- When load ≥ PV output: PV + storage supply load jointly
- When storage is insufficient: grid power provides backup supply
Off-Grid mode:
- When PV output ≥ load: PV supplies load first; excess charges storage
- When storage is full: PV curtailment occurs
- When load ≥ PV output: PV + storage jointly supply load
- When storage is insufficient: DC loads are shed (load shedding protection)
Protection Design
Each circuit is equipped with voltage and current monitoring, as well as over-voltage and over-current protection.
- DC bus includes insulation monitoring
- PV input ports are equipped with lightning protection
These ensure safe and reliable system operation under all conditions.
Key Value of the System
1. Solving Distribution Grid Integration Challenges
Through precise control of the 4-port Power Router, the system effectively mitigates grid pressure caused by PV + Storage + EV charging systems in space-constrained environments, balancing local energy generation and consumption while reducing impact on public distribution networks.
2. Improving Energy Utilization Efficiency
Through coordinated multi-port control, the system optimizes dispatch among PV, storage, and grid power. Direct battery charging reduces energy conversion losses and improves overall renewable energy utilization efficiency.
3. Ensuring Stable System Operation
With full-scope protection mechanisms—including real-time monitoring of voltage and current, over-voltage/over-current protection, and lightning protection—the system ensures stable and reliable grid-connected operation and reduces failure risk.
4. Optimized Energy Dispatch Logic
The Power Router enforces a hierarchical supply strategy of “PV first, battery second, grid backup,” enabling flexible switching between grid-connected and island modes while precisely matching load demand and avoiding energy waste.
5. Reducing O&M Costs
The system supports real-time monitoring, data storage, and fault alarm functions, simplifying operational management. Optimized energy allocation also reduces grid electricity consumption, lowering overall operating costs indirectly.
Outlook
It is worth noting that, driven by this utility-led demonstration project, PV + Storage + EV Charging integration is unlocking significant market opportunities.
This model not only transforms traditional charging infrastructure from a “pure energy consumption terminal” into a comprehensive energy node, but also has the potential to become a high-growth investment frontier.
It further expands new growth space for the energy storage industry and injects strong momentum into the green and low-carbon development of regional power systems.
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