Jiangxi Nanchang City Gas Station 31.98kW Power Station

📍 Project Location: Nanchang City, Jiangxi Province | ⚡ Installed Capacity: 31.98 kWp | 🔧 Solution: Module-level microinverter system | ✅ Completion Date: Month X, 2025

1. Core Equipment Configuration

📦 PV Modules

High-efficiency monocrystalline silicon modules
Fire-resistant / Anti-PID / Low degradation

⚡ Microinverter

• 2kW single-phase microinverter (IP67)
• Quantity: 17 units (1-to-4)
• DC voltage: ≤60V (safe voltage)
• AFCI arc protection / module-level MPPT

🛠️ Mounting Brackets and Accessories

• Aluminum alloy lightweight brackets (wind-resistant up to Level 12, anti-corrosion for 25 years)
• PV-specific flame-retardant oil-resistant cables (explosion-proof standards)
• AC combiner box, smart meter, anti-reverse current device

2. Project Design Highlights (Gas Station-Specific)

Ultimate Safety: ≤60V DC, no high-voltage arcing, fully compliant with gas station explosion-proof and fire safety standards
High Energy Yield: Module-level MPPT, 5%~15% higher generation under shading/dust conditions
Non-stop Construction: Modular design with no high-voltage work, zone-based construction without affecting station operation
Smart Monitoring: Module-level remote monitoring, precise fault location and early warning
High Reliability: Automatic isolation of a single microinverter failure, system availability of 99.9%

3. Power Generation and Economic Benefits

First-year power generation: 35,200 kWh
Annual electricity cost savings: approx. 26,400 RMB (RMB 0.75/kWh)
Self-consumption ratio: 75%~85%
Annual CO₂ reduction: 28 tons
Payback period: 5.2 years
Total power generation over 25 years: 820,000 kWh
Total revenue over 25 years: ≈ 660,000 RMB

4. Engineering Implementation Process

• Site survey: Assessment of roof load, shading, and safety distances
• Solution design: Specialized design for microinverter layout, electrical system, explosion-proof, and fire protection
• Filing and grid connection: Filing with Nanchang Municipal Development and Reform Commission, approval for grid access
• Material delivery: Inspection of equipment for explosion-proof, flame-retardant, and oil-resistant properties
• Zone-based construction: Brackets → Modules → Microinverters → AC wiring → Grid connection
• Commissioning and acceptance: Insulation, grounding, protection, monitoring, explosion-proof acceptance
• Grid connection and power generation: Official operation, 24/7 monitoring online

5. Project Value and Demonstration Significance

✅ A benchmark all-microinverter gas station PV project in the Nanchang area, completely eliminating the safety hazard of DC high voltage.
✅ Annual electricity costs reduced by over 20%, stable returns over 25 years, excellent return on investment.
✅ Integrated into Nanchang’s “Oil-Gas-PV-Charging” integrated green refueling station system.
✅ Provides a replicable standard solution for PV retrofitting of gas stations in Jiangxi Province.