GREENROCK stacks and combiner
Saltwater batteries are operating based on an electrolyte of aqueous sodium ions. The individual stacks of 12V, 24V or 48V can be extended modularly. Saltwater technology is the safest and most environmentally friendly way to store electrical energy. It is particularly suitable for long-lasting stationary applications, such as residential houses, commercial storage systems or off-grid solutions.
- Preferred replacement for lead batteries
- Safe and environmentally friendly alternative to lithium ion storage
24V/48V with 2.7 kWh
Advantages of salt water technology
safe and environmentally friendly
non-flammable cell – non-explosive
maintenance-free
free of toxic materials
environmentally friendly electrolyte based on salt water
frequently occurring raw materials – no shortage possible
safe to touch
100% depth of discharge
no overcharging possible
long system service life even in deep discharge or partial load condition
wide temperature range +5°C to +50°C
no additional building regulations to be considered
Transport as harmless goods – no dangerous goods or ADR
Product Performance – 24V and 48V saltwater battery
Nominal Energy:
2,7 kWh (4A charge/discharge)
Nominal Voltage:
DC 48 V
Voltage Range:
35 V – 59 V
charging power:
CC
Depth of Discharge (DOD):
100%
Efficiency:
88,5%
Maximum charge current:
20A
Maximum discharge current:
20A
Operating temperature:
-5°C to + 50°C
Storage Temperature:
-5°C to + 50°C
Cycle Life:
5.000 Zyklen @ 80% DOD
Nominal Energy:
2,7 kWh (8A charge/discharge)
Nominal Voltage:
DC 24 V
Voltage Range:
17,5 V – 29,5 V
charging power:
CC (Gleichstrom)
Depth of Discharge (DOD):
100%
Efficiency:
88,5%
Maximum charge current:
40A
Maximum charge current:
40A
Operating temperature:
-5°C to + 50°C
Storage Temperature:
-5°C to + 50°C
Cycle Life:
5.000 Zyklen @ 80% DOD
Physical Characterictics
Height:
960 mm
Width:
313 mm
Depth:
329 mm
Weight:
140 kg
Read more about a cost comparison between different battery technologies.
48V saltwater battery
24V saltwater battery
Product performance 12V saltwater battery
Nominal Energy:
675 Wh (5A charging/discharging))
Nominal Voltage:
DC 12 Volt
Voltage Range:
8,8 – 15 V
Charging:
CC (Gleichstrom)
Depth of Discharge (DOD):
100%
Efficiency:
88,5%
Maximum charge current:
20A
Maximum discharge current:
20A
Operating temperature:
-5°C to + 50°C
Storage temperature:
-5°C bis + 50°C
Cycle life:
5.000 Zyklen @ 80% DOD
Physical Characteristics
Height:
235 mm
Width:
313 mm
Depth:
329 mm
Weight:
35 kg
GREENROCK Combiner Box
The Combiner box makes DC connection of the battery simple and easy.
Up to 12 GREENROCK battery stacks are connected easily. The box contains power distribution, including fuse protection for the individual stacks. Several combiner boxes can be connected to form a cluster.
Wir empfehlen jede Installation von GREENROCK Stacks mit einer Combiner Box durchzuführen. Mit einem integrierten SOC (State of Charge) Board und einem LAN Anschluss wird jeder Stack einzeln überwacht. Die Combiner Box ist für Diagnose und Analysezwecke unbedingt nötig.
We recommend installing a Combiner Box with each GREENROCK stack installation. With an integrated SOC (State of Charge) board and a LAN port, each stack is monitored individually. The Combiner Box is most important for diagnosis and analysis.
Functions of the Combiner Box
Temperature sensor
Voltage measurement per stack
Analysis tool for measuring SOC of each individual stack
Remote diagnosis and analysis
Makes DC battery connection simple and easy
Selected Customer projects – GREENROCK in use
In our blog you can read about projects and their special features. Click on the pictures of the individual references above and find out more.
You can read all our blog articles here.
Learn more about our other areas of business
GREENROCK Home
GREENROCK’s battery technology is the safest and greenest electricity storage device in the market for storing electric power. Maintenance-free and reliable at the same time. Robust due to the possibility of a complete deep discharging of the battery
GREENROCK Business
The safes and most environmentally friendly battery storage – delivered as turnkey solution. Saltwater batteries, power electronics, energy management system (EMS), cabling and fuse protection are included in the GREENROCK business.
Saltwaterbattery
GREENROCK’s battery technology is the safest and greenest electricity storage device in the market for storing electric power. Maintenance-free and reliable at the same time. Robust due to the possibility of a complete deep discharging of the battery.