Austa releases all-in-one storage system for residential use

Chinese manufacturer Austa has released a new series of high-voltage, three-phase, all-in-one storage systems for residential use.

The AU5-15KETH product line features an inverter with an output range of 5,000 W to 15,000 W and storage capacities ranging from 10 kWh to 30 kWh, depending on the model.

“The system supports over 100% single-phase loads, ideal for aging grids or high-demand scenarios,” the company said in a statement. “It has an over 10 ms UPS-level transition for seamless backup power for sensitive devices during outages. It is also rated for less than 2% harmonic distortion, complying with IEEE 519 standards, which protects appliances and avoids grid penalty risks.”

The system’s inverters handle PV inputs from 7,500 W to 22,500 W, using two maximum power point trackers (MPPT) with one string per MPPT in smaller models and up to two in the larger models.

It achieves an MPPT efficiency of 99.9% and a maximum efficiency of up to 98.4%, and it uses lithium iron phosphate (LiFePO4) batteries with a lifespan exceeding 6,000 cycles.

“The smart built-in heating pads maintain over 60% charge/discharge efficiency at -30 C,” the company said. “Seven sensors monitoring nine battery cells, detecting 0.1 C fluctuations with unmatched precision. AI-powered arc fault detection responds in under 500 milliseconds with zero false alarms, covering ranges of up to 300 meters and supporting currents of up to 30A, ensuring industry-leading safety and efficiency.”

The systems measure 60 cm in width and 24 cm in depth, with heights ranging from 59 cm to 1.31 meters, depending on the model and the number of batteries. Weights range from 70.1 kg to 181.3 kg. The inverter is rated IP66, while the batteries are rated IP65.