StoraXe-Rack-System – System


StoraXe-Rack-System – System

Lithium-ion battery storage systems Home & Small Business
Grunblitz storage systems of the Home & Small Business is designed for larger houses, multi-family homes as well as businesses and public institutions. The StoraXe® Home & Small Business solutions store excess PV energy and provide it at times when there is insufficient PV energy. This will make you independent of rising electricity prices.

SRS2019 / 2028 / 2047
The all-round, carefree storage solution for seamless integration in existing building installations

  • 18,6 kWh / 27,9 kWh / 47 kWh
  • Grunblitz Energy management system (EMS)
  • AC battery storage system with integrated inverter
  • Integrated Grunblitz Energy Management System (EMS)
  • Fully fledged emergency power function in the event of power failure
  • 3-phase, with up to 100 % unbalanced load in emergency power operation
  • Network formation for self-sufficient, isolated systems
  • 3-phase up to 100 % unbalanced load in emergency power supply mode
  • Power Education for autonomous Grid Systems
Possible areas
The Grun Blitz Portfolio Home & Small Business is designed for the following application areas. For the task of energy management beyond just day / night shift goes.

  • Single-family homes
  • Multi-family Houses
  • guesthouses and small hotels
  • Public institutions, kindergartens, community centers
  • craft and smaller commercial businesses
  • Farms and rural remote units
  • Complete “island solutions” (with 100% self-sufficient supply)
Ready for the future
High energy densities can be always released unrestrained in extreme cases. Nevertheless, gas, hydrogen, and millions of mobile fuel tanks accepted part of our everyday infrastructure. We trust these systems, “Made in Germany” because research, development, security analysis, standards and continuous quality assurance maximizes the benefits and minimizes the risk have. This procedure also applies to battery storage solutions from Grunblitz.

  • Powerful lithium-ion technology for a lifetime of 20 years
  • Selected cells from renowned manufacturers
  • Compliance with current and future standards and certifications
Solar system without energy storage system Dependence on grid operators

  • Only a small portion of the self-produced PV energy can be directly consumed
  • During periods when no PV power is available, power must be drawn from the public grid
Solar system with energy storage system For your independence

  • The StoraXe® solutions for Home & Small Business store excess PV energy and make it available again when the PV energy supply is insufficient
  • This frees you from rising power prices
Storage of excess energy for time-shifted self-consumption.
Emergency power supply
Provision of power in the event of an interruption of the mains supply.
Primary control power
For the power supply to work everywhere, the grid frequency must always be constant.
Microgrid (Off-Grid)
For a self-sufficient power supply independent of the higher-level power grid.
EV charging
At limited power grid for optimal charging infrastructure.


For centralized and decentralized energy management
From the OFFLINE version of a decentralized single system to complex ONLINE-coupled interconnection systems. With the Grunblitz platform Big-LinX® Energy, the energy management system is scalable for every application.

Technical Data

StoraXe-Rack-System – System

SRS2019 SRS2028 SRS2047
System System type AC battery storage system
Control / functions Grunblitz master interface or Grunblitz energy apps
Network connection Ethernet, RJ45
Inverter integrated
Grid connection Effective power 18 kW
Apparent power 20 kVA
Emergency power / black start yes/yes
Mains voltage 400 VAC
Grid type 3-phases, TN-S
Grid frequency 50 Hz / 60 Hz
Battery storage system Battery technology Lithium-ion Lithium-ion Lithium-ion
Nominal energy content 18.6 kWh 27.9 kWh 46.4 kWh
Capacity 106 Ah 159 Ah 159 Ah
Battery cells* Cell manufacturer SK Innovation
Cell capacity 53 Ah
Cell chemistry Lithium-NMC
Specified cycles up to 80% of residual capacity 13.000 (2C/2C@23°@80%DOD)
Expected life cycle 20 years
General data Installation location Indoors
Temperature range 10 to 30°C
Humidity < 90 %, non-condensing
Protection class IP43
Guarantee of current market value up to 10 years
(battery cells)
Dimensions W x H x D 600 x 1.700 x 750 mm 600 x 1.700 x 750 mm 1.200 x 1.700 x 750 mm
Weight Approx. 470 kg Approx. 520 kg Approx. 820 kg
Standards EMC: EN 61000-6-1:2007-10; EN 61000-6-3:2007 + A1:2011
Safety (functional and electrical): EN 50272-1:2010; EN 50581:2012
Transport: UN38.3 transport directive for lithium batteries
Grid directive: VDE-AR-E-2510-2; VDE-AR-N 4105


Serving Customers all over the world

500 + premium clients

Our OEM Clients