FAQ

Battery energy storage systems can support peak shaving, load shifting, backup power, renewable integration, microgrids and selected grid services.

Compatible configurations can support on-grid, off-grid or switching operation when the correct inverter, bypass or STS equipment and system controls are selected.

A hybrid inverter integrates PV, batteries, loads and grid control. A battery inverter, or PCS

focuses on bidirectional conversion between the battery and the AC system and is commonly used in larger BESS projects.

Selection depends on load power, required storage duration, grid conditions, application, installation environment and local standards. Share the project load profile and target functions with ATESS for system sizing.

Yes. The ATESS All-in-One BESSsystem supports seamless on and off-grid switching within 10ms. It can also interface directly with diesel generators to form a resilient microgrid.

Integration describes how tightly batteries, PCS, BMS, EMS, thermal management, fire safety and protection hardware are engineered and validated to work together. Poor integration does not just mean extra installation work — it directly impacts system performance, reliability, OPEX, safety and project bankability.

1. All‑in‑One BESS (Integrated Cabinet‑type BESS)

A compact single‑cabinet solution where battery modules, PCS, BMS, EMS, thermal management and fire suppression are fully pre‑integrated inside. Suitable for medium C&I projects <1 MWh.

2. Battery Cabinets (Stand‑alone Battery Cabinets / Split‑type Cabinet BESS)

These are battery‑only cabinets: housing battery racks, BMS, thermal and fire safety, but NO built‑in PCS. PCS cabinets and EMS are separate hardware units delivered individually and interconnected on‑site by EPC/installers.

3. Containerized BESS (Container‑based BESS)

Complete energy‑storage system housed inside a standard shipping container (20ft / 40ft). Inside the container it integrats: batteries, multiple PCS units, BMS, central EMS, large‑capacity cooling (air‑cooled or liquid‑cooled), container‑level fire‑suppression, HV/LV distribution. Suitable for large scale C&I or utility projects ≥1 MWh.