OnGrid Bidirectional Inverter

Wholesale Bidirectional On-Grid Inverter Manufacturer China

High-efficiency bidirectional on-grid inverter for ESS. 98.4% Max efficiency, IP65 protection, 5-10 year warranty. Factory direct MOQ. Inquire now.

Product Overview & System Integration

The Hemao Bidirectional On-Grid Inverter serves as the power conversion core for complex Energy Storage Systems (ESS). Unlike standard unidirectional models, this hardware facilitates regulated power flow from PV to Grid, PV to Battery, and Grid to Battery for peak shaving. As a direct manufacturer, we offer PCB-level customization and firmware adaptation to ensure protocol matching with various LiFePO4 BMS. The system supports full on-grid synchronization and can be integrated into VPP (Virtual Power Plant) frameworks via standard Modbus RTU communication.

Quality Control & Global Standards

Every bidirectional inverter unit undergoes 100% full-load aging testing for 24 hours at the Xiamen Hemao facility. Quality protocols include High-Pot testing, grounding resistance verification, and communication stability checks. All hardware is manufactured to meet CE (LVD/EMC), TUV, and RoHS standards. We provide factory-original test reports for bulk EPC orders to ensure grid-entry compliance in specific regional markets.

Packaging & Logistics Safety

Export-grade protection is standard for all B2B shipments. Inverters are secured in double-wall corrugated cartons with precision-cut EPE foam inserts to mitigate vibration during maritime transit. For container-level orders, we utilize fumigated heat-treated wooden pallets with moisture-proof plastic wrapping and edge reinforcement. As a supplier of high-value power electronics, we manage all dangerous goods documentation for integrated battery systems if required.

Typical Application Scenarios

Industrial Peak Shaving: Reducing demand charges by discharging batteries during peak rate hours.

Commercial Solar + Storage: Ensuring 24/7 power availability for data centers or telecom base stations.

Community VPP Projects: Aggregating multiple units for grid frequency regulation.

Solar Irrigation: High-torque motor support with bidirectional grid stability.

FAQ

Q: How does the bidirectional flow handle grid-to-battery charging protocols?

A: The firmware manages the constant current/constant voltage (CC/CV) charging stages by rectifying AC grid power into DC. The inverter logic prioritizes PV charging, but if grid-charging is activated, it communicates with the BMS via CAN to prevent cell overcharge or thermal runaway.

Q: Is the cooling system sufficient for 50°C ambient temperatures in desert environments?

A: Yes. The 100% duty cycle is maintained through a high-surface-area aluminum heat sink and variable-speed ball-bearing fans. The system includes an automated derating function that protects internal IGBT components if internal temperatures exceed safety thresholds, preventing catastrophic hardware failure.

Q: What customization depth is available for OEM branding and shell design?

A: For wholesale orders exceeding 100 units, we provide custom powder-coating colors, silk-screened logo printing, and localized software interfaces. We also offer private-label PCB modification for specific grid-code requirements in markets like Australia (AS4777.2) or the UK (G98/G99).

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