BMZ Energy Storage System ESS Z

Capacity 162 Ah, energy content 7.1 kWh, rated voltage 54.7 V

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Article-No.: 619223

ESS Z is a modular lithium-ion energy storage system that stores the excess photovoltaic energy generated in battery modules for later use. Energy can be selectively fed from the inverter to the grid or to the energy storage system. Energy can be retrieved when the need is there: in the evening, at night and at times when the sun is low. With the ESS Z system, solar power users become more independent of electricity prices and use their self-produced green power when they need it.

Art.no. 610850

Up to 12 modules can be connected in parallel
Maximum discharge power up to 18 kW
Electromechanical, currentless open DC relay for redundant battery shutdown (in combination with 2nd Protection)
Overvoltage and undervoltage monitoring at cell level, with redundant triggering of battery shutdown
Metallic, double-walled, sealed battery housing
Safe protection against restart after deep discharge or other significant battery damage
"Current Interrupt-Device" (CID) in each cell
Active current control for longevity (derating)
Single cell temperature monitoring in each cell level

Weight	98 kg
Width	638 mm
height	421 mm
depth	487 mm
Energy (nom.)	8,87 kWh
Energy (usable)	7,1 kWh
Nominal voltage	54.0V
Charge end voltage	61.5V
Disharge end voltage	45.0V
Max. charge	81A
Max. discharge power	300A (3 sec)
Communication	CAN SMA Protocol
Battery chemistry	Li-Ion NCA
Discharge depth	80% DOD
Battery Management system	Überwachung Zellspannung, Zelltemperatur, Strom, Derating und passives Balancing
Energy density (weight)	90,5 kWh
efficiency	85%
Capacity (usable)	129,6 Ah

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Article-No.: 619223