Self-contained and incredibly easy to deploy, they use proven vanadium redox flow technology to store energy in an aqueous solution that never degrades, even under continuous maximum power and depth of discharge cycling. Our technology is non-flammable, and requires little. Vanadium flow batteries are an interesting project, with the materials easily obtainable by the DIY hacker. The video (embedded below) is part 5. Let's cut to the chase – if you're reading about the all-vanadium liquid flow energy storage system, you're either an energy geek, a sustainability warrior, or someone who just realized Tesla Powerwalls aren't the only game in town. This article's for engineers nodding along to redox reactions. 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. This allows homeowners to have access to back-up power during outages due to extreme weather and helps control utility costs by collecting power from the electrical grid when rates are lower. Vanadium flow batteries address both of those shortcomings, offering 20-30 years of usable service life without degradation and with little (or, depending on who you believe, zero) chance of the sort of “thermal runaway” that leads to li-ion battery fires.