AGreatE ATEN 500kW BESS is a fully integrated all-in-one containerized energy storage system which delivers a wide range of energy storage solutions for commercial and industrial (C&I) applications, micro-grids and electricity grids.

ATEN-500 can enable C&I customers to avoid high charges from peak demand tariffs, and it can integrate intermittent renewable energies and can help serve as a backup power or emergency power supply for resilience purpose.

ATEN 500kW Benefits

Utilizing seamless switching capability between PV, Genset, Battery, or Grid power, the 500kW PCS cabinet contains a 500kW PCS with 600V-900V DC battery voltage range. Offered in both 4 and 8 x 138kWh battery racks, these battery strings are converted to 400~480V AC through the modularized PCS. The AC power is transferred to 400~480V AC via the built in transformer.

500kW battery energy storage system

Key Benefits

  • Ensures reliable, uninterrupted, and quality power availability
  • Maximizes fuel savings through the highest possible renewable integration
  • Optimized cost by reducing the number of generators required
  • High power quality by stabilizing the power systems against fluctuations in voltage and frequency
  • Achieves a secure and sustainable energy mix, together with energy efficiency
  • Engineered for rugged environments and extreme weather conditions

500kW BESS Systems Include

The ATEN 500kW battery energy storage systems (BESS) is an all-in-one hybrid energy storage system designed around a 500kW hybrid power platform and is compatible with PV solar, grid, and diesel genset energy sources. It’s compact footprint makes it an ideal turnkey solution for community microgrids, island microgrids, and commercial & industrial applications.

500kW battery energy storage system

ATEN 500kW Systems are fully certified and include:

  • The system storage container
  • 500kW power conversion system (PCS)
  • ATEN R138 Racks (4 to 8 depending on energy requirement)
  • BESS Controller with Battery Management System
  • HVAC System for temperature and humidity management
  • WiFi system monitoring so you can check performance anytime
  • System safety labels for better user safety and awareness
  • Installation manual for the entire BESS system
  • Commissioning and annual inspection documents
  • Electrical 3 line & mechanical drawings

Our ATEN BES Systems are designed to make logistics, installation, and commissioning easier.

ATEN 500kW BESS System Diagram


Electrical Specifications

ElectricalATEN 500-552ATEN 500-1104ATEN 500-1656
Rated Energy Capacity552kWh1104kWh1656kWh
Rated DC Voltage768V768V768V
Rated AC Power500kW500kW500kW
Rated Grid Voltage400V/480V400V/480V400V/480V
AC Rate of Current720A/601A720A/601A720A/601A
Grid Frequency Range50Hz/60Hz ± 2.5%50Hz/60Hz ± 2.5%50Hz/60Hz ± 2.5%
Isolation Method3 Phase 4 Line Transformer3 Phase 4 Line Transformer3 Phase 4 Line Transformer

General Specifications

GeneralATEN 500-552/strong>ATEN 500-1104ATEN 500-1656
Dimension (L/W/H)6058/2438/2591mm12192/2438/2591mm12192/2438/2591mm
Protection RatingIP54IP54IP54
Operating Temperature-20 ~ 40°C-20 ~ 40°C-20 ~ 40°C
Max Altitude3000m3000m3000m
Communication InterfacesRS485, Ethernet, GPRSRS485, Ethernet, GPRSRS485, Ethernet, GPRS
CertificationIEC62619, UN38.3, CE, UL1973, UL9540AIEC62619, UN38.3, CE, UL1973, UL9540AIEC62619, UN38.3, CE, UL1973, UL9540A

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The accuracy or completeness of the System Information is not guaranteed and is subject to change without notice. No license under any AGreatE or third party intellectual property rights is implied or granted with this Information. Customers are solely responsible for evaluating and selecting the Systems and determining whether each System is fit for a particular purpose and suitable for its particular use and method of application. Our Systems are not manufactured to any Customer requirements or specifications unless expressly agreed to in writing by AGreatE.