ATEN is AGreatE’s line of all-in-one Commercial Battery Energy Storage Systems (BESS) for commercial and industrial applications. The ATEN product line covers a wide variety of energy storage needs and can scale from a 30 kW inverter with 64 kWh of storage to a 500 kW inverter with 1000 kWh of storage. ATEN is designed for either grid connected or totally off grid applications and offers commercial and industrial customers turn key energy storage systems that are designed for 10+ years of hassle free usage.

ATEN pairs seamlessly with a number of different energy sources.  Typically Solar, Grid, and Diesel Gensets are paired together to make mini-grid applications.


C&I BESS Systems Include

All AGreatE BESS solutions are pre-engineered to be ready to install.  Each BESS includes

  • Battery Packs
  • Battery Racks & Wiring
  • BESS Controller with Battery Management System
  • High Voltage Units
  • Power Conversion System (PCS)
  • Transformer
  • Storage Container
  • HVAC System
  • Fire Suppression System
  • Installation Manuals, Certificates, Usage Guide, etc

BESS Warranties

AGreatE offers multiple warranty options on all its BESS systems.  From the pack level to the entire system, your system will always be backed by a robust set of warranties that will ensure long and trouble free operation.


Cycles Battery Cells


Years PCS


Cycles Battery System


Years BOS Components

BESS Certifications

IEC 62619, UN 38.3, CE,UL 9540 and UL 9540A, UL1973

Quality Assurance

Quality Assurance

AGreatE’s innovative BESS production facility carefully checks and inspects all BESS components. By using our previous knowledge of the certification industry (TUV), AGreatE has established a quality assurance inspection program which prevents potential manufacturing defects and ensures the electric codes and standards for each specific market are followed. The outcome of this program has been highly beneficial to BESS performance, channel partners and end users who all install our products.

AgreatE offers complete quality Assurance on all its product lines by adding a second layer of inspection during kit manufacturing at our facilities.

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