Energy Storage - CellCube

CellCube, solving the problem of storing solar energy.

The CellCube energy storage system is considered to be a milestone in the history of the regenerative energy management. Whether in combination with photovoltaics, wind power plants, biogas generators or in parallel operation – the vanadium redoxflow energy storage system ensures uninterrupted power supply. It is independent of weather and temperature fluctuations, temperatures, length of day or unstable grids.

HIGHLIGHTS

High level of safety, non-flammable, non-explosive
Installed in three world heritage sites
Extremely quiet operation
Virtually unlimited cyclisation
Scalable system through a parallel connection of multiple CellCubes
CellCube is 100% capable of deep discharge cycles
Turnkey energy storage in a weatherproof and tamper-proof housing
Up to 80 % efficiency
Integrated system solution, including specially adapted inverters, thus giving access to various energy sources.
Optional remote or online maintenance
Central temperature management
Optimal operational performance as a result of smart battery management
Simple and cost-effective transport thanks to standard freight containers
Vanadium is environmentally-friendly and recyclable
Spontaneous response to load demand

The CellCube energy storage system based on vanadium redox flow technology is the perfect solution for stable power supply. With a capacity of 40, 70, 100 and 130 kWh and a charge / discharge power output of 10, 20 and 30 kW, the CellCube provides large energy reserves for e-mobility applications or peak load coverage.

FIELDS OF APPLICATION

Grid support: to stabilise low and medium voltage systems, as an energy reserve, or to smooth out output spikes (management of load and production peaks)
Backup: as inline UPS system with frequency and amplitude decoupling, equipped with the latest system safety features
Wind and solar parks: as a buffer to stabilise energy output and fluctuations, higher contractual security through energy reserves in times of reduced performance
Repowering: Investment protection: CellCube ensures constant energy feed even after the wind or solar park has been written off.
Increase in self-consumption of renewable energies and substitution of diesel generators

Performance and energy *
Nominal charge output	10/20/30 kW
Nominal discharge output	10/20/30 kW
Capacity of the energy storage system	40 kWh (optional 70/100/130 kWh)
Battery and system voltage
Output voltage option	- 48 VDC; 120 VAC; 230 VAC (single-phase); 400 VAC (three-phase)
Duty cycle / reaction time	grid-independent: < 20 ms, remote control: < 3 s
Control system
Control via external interfaces	serial, TCP / IP, other bus systems
Monitoring
Condition monitoring using remote query by e-mail	Charge rate, available energy, charge / discharge power output, etc.
Efficiency
Efficiency depends on the area of application	up to 80 %
Discharge time at nominal power output
Discharge time (autonomy)	Depends on power output and capacity
1.3 hours **	24 kW
2 hours **	16 kW
4 hours **	8 kW
Self-discharge
Self-discharge during standby **	<150 W
Self-discharge in tank	negligible (< 1 % per year)
Size and weight
Dimensions L × W × H	4660 × 2200 × 2420 m
Weight (when empty)	3.8 – 4.5 t
Total weight (when filled)	7 – 14 t
Climatic operating conditions
Climatic operating conditions	-20°C bis +45° (monthly average)
	The intelligent temperature management system maintains the indoor temperature between 20°C and 30°C. Thanks to adequate insulation (for heating or cooling) it can be used in all climatic zones
IP protection class
IP protection class	IP 54
* Standard unit ** Subject to change