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Solar Panels

30kWh VFB Battery


Our 5kW/30kWh is our smallest self-contained battery embedding our proprietary Multigrids™ flow dynamic disruption.  Based on a sweet spot sizing, our 5/30 battery is able to fulfill several market applications.

Residential storage customers, with or without solar panels, will find this battery able to satisfy the energy storage needs and power back-up, even of the larger home.

Additionally, our 5/30 battery supports several industrial and commercial installations, such as telecom tower back-ups, smart grids and microgrids integration, both connected to the grid and/or renewables, and to Virtual Power Plants.

Our 5/30 battery has a compact footprint, broad operating temperature, and enjoys the conformance to existing and emerging standards enabling safe and reliable deployment. It is based on a modular architecture that allows connecting several ones together to increase specifications, in simplicity.

Our 5/30 battery is also available in an underground version embedding Thermastable™, our patented geothermal temperature conditioning system.

Thermastable™ makes our batteries ideal for installation in locations with harsh climates, such as Minnesota or Africa. Thermastable™ delivers higher round-trip efficiency (up to 82%) and reduced cost/cycle.

The underground installation delivers superior resilience in case of natural disaster, vandalism and theft and makes it ideal for e.g. ideal for remote installations e.g. telecom towers.


All StorEn vanadium flow batteries are equipped with a proprietary Battery Management System (BMS).  The StorEn’s BMS is an IP-based remote monitoring system that enables its main operational parameters to be accessed through a web browser, smartphone or tablet.

The BMS delivers real-time data, history charts, and diagnostic information including recent events and working codes. The system can also deliver alerts when certain events occur. The StorEn’s BMS enables shifting from scheduled maintenance to maintenance-on-demand.

StorEn’s  patented Equilevels™ and  Resafe™ in association with our proprietary BMS, make StorEn batteries virtually maintenance-free!

Image by Christian Dubovan
Image by Anastasia Zhenina


  • Multigrids™

  • Thermastable™

  • Equilevels™

  • Resafe™

Contact StorEn Technology.

  • What Happens if there is a Malfunction or Failure of a 30kWh VFB in a Remote Location?
    All of our Vanadium Flow Batteries are equipped with a proprietary Battery Management System, which sends alerts should a problem or certain event occur.
  • What Applications is the 30kWh VFB Battery Designed for?
    The 5kW/30kWh Vanadium Flow Battery (VFB) is designed for off grid/microgrid and industrial applications. Small in size, but powerful enough to store the energy needs of even large homes, the 30kWh VFB stackable batteries are powerful enough to support telecom tower back-ups and microgrids.
  • Where Can I Get More Information About the 30kWh VFB from StorEn?
    To learn more about StoreEn Technologies 30 kWh vanadium flow batteries for your residential, industrial, or microgrid application, contact us today.
  • How long will a 30 kWh Vanadium Flow Battery Last?
    These small batteries have an expected lifespan of 15,000 cycles or approximately 25 years.
  • Can These Small Batteries Sustain Extreme Temperatures?
    Yes. These batteries are ideal for applications in areas of extremely hot or extremely cold temperatures, thanks to the proprietary Thermastable™ geothermal design. This patented design is also designed to withstand natural disasters. The 30kWh VFB battery can be installed underground as well, making it an ideal solution for remote installations.
  • How does the vanadium flow technology compare to lithium batteries for solar-paneled homes?
    Lithium-ion batteries are the most widely used batteries for solar-powered energy storage. However, they are far from environmentally friendly. Lithium-ion batteries contain toxic heavy metals such as cobalt, nickel, and manganese. All of these elements must be mined, which has a significant environmental cost. By contrast, VFBs use a water-based electrolyte, and vanadium which is widely available. Moreover, lithium-ion batteries are recycled at a rate of less than 5%, whereas VFBs are nearly 100% recyclable. VFBs are also non-flammable, and non-explosive, making them safer than widely used hybrid batteries.
  • What Maintenance is Required for the 30 kWh Vanadium Flow Battery?
    These small batteries are designed to be virtually maintenance-free. Real-time data, diagnostic information, and history charts are viewable online, and accessible from anywhere in the world.
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