5kW On Grid Solar System Wholesale Factory | China Supplier
Source Tier 1 5kW on-grid solar systems from a direct China manufacturer. 98.4% max efficiency, 25-year linear warranty. MOQ 5 sets. Get a quote today!
Product Overview & System Integration
The 5kW on-grid solar system is engineered for residential and light commercial grid-tied applications, ensuring maximum energy yield and direct grid feed-in. This standardized package integrates high-efficiency Tier 1 monocrystalline photovoltaic modules with a dual, pure sine-wave inverter, optimized for varying utility-voltage environments. We provide deep factory customization, including specific PCB adaptations, regional grid code compliance configurations, and mold developments for proprietary inverter casings. The system forces direct synchronization with local utility grids, minimizing transmission losses and maximizing return on investment. Our supply chain capabilities ensure all mounting structures, PV cables, and distribution boxes are precisely matched for rapid EPC deployment. Regional wholesalers benefit from our end-to-end system design services and absolute bill of materials (BOM) stability.
Product Parameter
| System Component / Parameter | Technical Specification Data |
| PV Module Type | Tier 1 Monocrystalline Half-Cell (450W/550W variants) |
| Inverter Capacity & Type | 5000W Grid-Tied, Pure Sine Wave, Dual MPPT |
| Max Efficiency | Inverter: 98.4% / PV Modules: Up to 21.5% |
| Mounting Structure Material | AL6005-T5 Aluminum alloy & SUS304 stainless steel |
| Safety Protections | OVP (Over Voltage), OCP (Over Current), Anti-Islanding, Surge SPD Type II |
| Environmental Limits | Operating Temp: -25°C to +60°C / Max Altitude: 3000m |
| Ingress & Corrosion Rating | IP65 enclosure / Salt mist & ammonia resistance certified |
| Design Life | 25 Years (Solar Panels), 10 Years (Inverter standard) |
Quality Control & Global Standards
Every component undergoes rigorous factory inspection protocols before container loading. Solar modules pass dual 100% EL defect scanning and flash testing to eliminate micro-cracks and verify output wattage. Inverters undergo 48-hour continuous full-load aging tests in thermal chambers to validate thermal dissipation designs. The entire electrical system complies strictly with global certification standards, including TUV, CE, RoHS, and IEC61215/IEC61730 for modules, ensuring zero friction during local grid connection approvals for EPC contractors.
Packaging & Logistics Safety
We implement robust export-grade packaging solutions to secure heavy components and fragile photovoltaic glass. PV modules are vertically stacked in reinforced corrugated cartons and secured on fumigated ISPM-15 wooden pallets. Inverters and distribution boxes utilize customized EPE foam molds to absorb high-frequency transit vibrations. We execute exact container loading simulations to maximize space utilization in 20FT/40HQ containers, utilizing cross-bracing steel straps and airbags to prevent load shifting during ocean freight.
Typical Application Scenarios
This 5kW grid-connected system is directly configured for rapid deployment across high-density residential rooftops and small-scale commercial facilities. It provides consistent baseline power generation for distributed generation (DG) quotas, net-metering structures, and local utility feed-in tariff (FiT) programs. The standardized hardware accommodates varying pitch angles for tile, metal, or flat concrete roof structures, reducing mechanical installation hours for regional off-grid installers and solar system integrators.
FAQ
Q: How does the 5kW grid-tied inverter synchronize with regional utility voltage fluctuations?
A: The integrated pure sine wave inverter features automatic voltage regulation and precise anti-islanding protection. It continuously monitors local grid frequencies and automatically adjusts the output to precisely match regional 220V/230V/240V parameters, ensuring high-power-factor operation during severe grid irregularities.
Q: What is the exact linear power degradation warranty for the included monocrystalline modules?
A: We guarantee a 25-year linear power output performance. Degradation is strictly limited to 2% in the first year and 0.55% annually thereafter. This ensures the modules retain at least 84.8% of their initial rated power capacity at the end of the warranty cycle.
Q: Can regional energy wholesalers request customized branding and exact wire length modifications?
A: Yes, direct factory OEM service regionals include precise laser-etched logos on inverter casings and solar panel frames. We adjust DC/AC cable lengths to your specific structural requirements and adapt distribution box configurations to meet regional electrical safety compliance for bulk orders.
Call to Action:
Request a precise system wiring diagram and wholesale project quote within 24 hours. Batch OEM samples available for quality testing. Contact our factory engineers to verify compatibility with local grid codes.
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