The Atess 500kW HV 600–900V Battery Inverter stands at the forefront of high-voltage energy storage technology. Designed for large-scale commercial, industrial, and utility installations, this powerful bidirectional inverter supports seamless integration with lithium-ion battery systems operating within a 600V to 900V DC voltage range.
As part of the ATESS PCS (Power Conversion System) series, the 500kW HV inverter provides highly reliable energy conversion and load-balancing functionality, enabling peak shaving, frequency regulation, backup supply, and full hybrid system capabilities. With a maximum efficiency of 97.6%, and support for standalone or parallel operation, it’s built for smart grid and off-grid scenarios alike.
Thanks to its smart EMS compatibility via RS485 and CAN interfaces, and integrated protection mechanisms, this inverter guarantees both safety and scalability. It also includes a user-friendly touchscreen interface for local monitoring and configuration.
Technical Specifications Table
| Specification | Details |
|---|---|
| Model | PCS 500KW-HV |
| Rated Output Power | 500kW |
| Apparent Power | 550kVA |
| DC Voltage Range | 600V – 900V |
| Max. Charging/Discharging Current | 750A |
| AC Voltage Range | 380V – 440V |
| Output Voltage (Nominal) | 400V 3-phase |
| Frequency Range | 45Hz – 55Hz / 55Hz – 65Hz |
| Power Factor | >0.99 (Adjustable from -0.8 to +0.8) |
| Efficiency (Max) | 97.6% |
| Overload Capability | 110% for 10 mins, 120% for 1 min |
| Communication Interfaces | RS485, CAN |
| Operating Temperature | -20°C to +55°C |
| Cooling Method | Forced air cooling |
| IP Protection Level | IP20 (Indoor use) |
| Dimensions (W × H × D) | 1450 × 2000 × 900 mm |
| Weight | 1600 kg |
Key Benefits
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🔋 Massive Power Handling – 500kW rated output for utility-scale systems
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⚡ Wide Voltage Support – DC input range of 600–900V compatible with HV lithium-ion batteries
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🔄 Bidirectional Flow – Enables charge and discharge modes for complete energy control
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🧠 Smart Communication – Integrated EMS support via CAN and RS485 interfaces
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🔧 Flexible Deployment – Supports standalone use or parallel operation for scaling
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🌐 Seamless Grid Interaction – Adjustable power factor and frequency settings
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🛡️ Complete Safety Suite – Advanced protection features including overload, overvoltage, and over-temp
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📟 User-Friendly Monitoring – Touchscreen interface with real-time data access
Ideal Applications
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Utility-scale battery energy storage systems (BESS)
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Industrial power backup and stabilization
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Renewable hybrid microgrids
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Smart grid load balancing
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Peak demand charge reduction
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