Hongjiali New Energy (HG POWER) Construction Process of a PV-Energy Storage-Charging Integrated Charging Station

October 14, 2025

Hongjiali New Energy(HG POWER) PV-energy storage-charging integrated station (PV-ESC) combines photovoltaic power generation, energy storage systems (ESS), and EV charging in one site. It is becoming a key infrastructure for green mobility and smart energy systems.

This guide summarizes the complete construction process of a PV-ESC integrated charging station — including feasibility analysis, design and approvals, construction, commissioning, and long-term O&M.

What Is a PV-Energy Storage-Charging Integrated Charging Station?

A PV-ESC station integrates:

Photovoltaic (PV) power generation
Battery energy storage systems (BESS)
AC/DC EV charging infrastructure

It reduces electricity costs, increases energy self-sufficiency, supports grid stability, and provides fast-charging services.

Phase 1: Preparatory Work & Feasibility Analysis

1. Project Positioning

Clarify the project’s strategic direction:

Target users: private EVs, fleet vehicles, taxis, logistics vans, buses, or industrial parks
Business model: main business vs. supporting facility
Core objectives: profitability, ESG branding, carbon reduction, energy autonomy

2. Site Selection & Survey

Key considerations include:

Location: traffic flow, accessibility, promotion value
Site conditions:
Area & available layout
Solar irradiance
Geological bearing capacity
Grid access: distance to substation, expansion difficulty, expected grid connection cost

3. Technical Solution & Economic Evaluation

Plan the system scale:

Charging piles: e.g., 120KW–360 kW DC fast chargers, 7 kW AC chargers
PV capacity: based on rooftop/carport area
Energy storage: kWh/kW capacity for peak shaving & backup power

Economic indicators:

Total investment
Operating revenue forecast
Peak-valley arbitrage income
Payback period & IRR
Government subsidies & carbon credit income

4. Policy & Subsidy Research

Research policies at national, provincial, and municipal levels:

Renewable energy subsidies
PV/ESS incentives
Charging infrastructure tax benefits
Approval procedure requirements

Phase 2: Design & Approvals

1. Detailed Engineering Design

Performed by licensed design institutes:

Electrical design: wiring, EMS logic, communication topology
Civil/structural design: canopies, foundations, cable trenches
PV system design: modules, tilt angles, inverters
Energy storage design: battery selection, PCS, BMS, fire safety
Charging area design: pile layout, parking spaces, traffic flow

2. Government & Utility Approvals

Typical approval steps include:

Project filing with the Development and Reform Commission
Grid connection approval (the most critical)
Land planning permit
Construction planning permit
Environmental Impact Assessment
Energy conservation evaluation
Fire protection design review (especially for ESS)
Construction permit — construction can only start after this

These procedures greatly affect the project timeline.

Phase 3: Equipment Procurement & Construction

1. Procurement & Tendering

Key equipment:

Photovoltaic modules & inverters
Energy storage containers
Charging piles
Transformers & distribution cabinets
High/low-voltage cables

2. Civil Engineering Works

Site leveling
Foundation construction
Cable trenches
Station building

3. Mechanical & Electrical Installation

PV installation: brackets, modules, junction boxes
Energy storage installation: container placement, cabling
Charging system: chargers, canopies
Power system: transformers, switchgear, metering

4. Cable Laying & Wiring

Complete power, control, and communication cable connections.

Phase 4: Commissioning, Acceptance & Grid Connection

1. Individual System Commissioning

Test each subsystem independently:

PV
Energy storage
Charging piles

2. Integrated System Testing

Verify EMS control strategies:

“PV priority” operation
Peak-valley energy arbitrage
Backup power mode
High-power charging performance

3. Completion Acceptance

Joint inspection by construction, design, and supervision teams.

4. Power Company Grid Acceptance

Includes:

Protection system inspection
Metering inspection
Power purchase agreement

After approval, the station officially begins operation.

Phase 5: Operation & Maintenance

1. Intelligent Operation

Real-time monitoring via cloud platforms
Charging service billing (apps, mini-programs, RFID)
Dynamic optimization based on electricity price

2. Routine Maintenance

Photovoltaic module cleaning
Cable inspection
Energy storage health check
Fire protection management (ESS is the priority)

3. Data Analysis & Optimization

Use historical data to enhance:

Charging efficiency
PV utilization
Battery cycle performance
Operating revenue

Challenges & Key Considerations

1. High Initial Investment

Energy storage is the biggest cost component—economic feasibility must be carefully analyzed.

2. Complicated Approvals

Multiple departments, long timelines — professional follow-up is essential.

3. Technical Integration

PV + ESS + charging requires strong system integration capability and a stable EMS.

4. Safety Requirements

Especially for lithium battery energy storage:
design → selection → construction → operation must all meet safety standards.

5. Business Model Innovation

Beyond charging fees, explore:

Virtual power plant (VPP) participation
Demand response (DR)
Carbon credits & green electricity transactions

These help increase revenue and shorten ROI.

Conclusion

A PV-energy storage-charging integrated charging station is a complex engineering project requiring multidisciplinary expertise, precise planning, and strict safety control.

By following the five-phase process—feasibility study, design & approvals, construction, commissioning, and O&M—investors can confidently build a high-performance, profitable PV-ESC station.

For best results, it is recommended to Hongjiali New Energy(HG POWER) with:

Experienced design institutes
Qualified EPC contractors
Professional approval teams
Reliable EMS suppliers

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Hongjiali New Energy (HG POWER) Construction Process of a PV-Energy Storage-Charging Integrated Charging Station

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