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The Forever Battery – Brainchild of Older Gen Silicon Valley Team

Via Nextgov: “Imergy Power Systems’ headquarters in an office park in one of Silicon Valley’s less glamorous precincts is the type of place where the future used to be invented. There are no Beats headphones-wearing 20-somethings on scooters. No foosball tables, rooftop beer garden or ironically named conference rooms. No birdhouses. Just a sea of drab, blue-gray cubicles. The median employee age appears to be around that of the typical software engineer who files an age-discrimination lawsuit. There are scientists wearing white lab coats. Some have white hair. The chief executive is 61 – that’s 120 in Silicon Valley years. Needless to say, Imergy is not developing the next $19 billion app that Facebook will acquire, but the startup could end up powering Facebook. Imergy has spent years perfecting an energy storage device that, if it lives up to its billing, will help accelerate the big green future by allowing companies and homeowners to pull the plug on their local utility by banking electricity from solar arrays and wind farms for use when the sun is not shining or the wind is not blowing. A 250-kilowatt battery system installed in a 40-foot container, for instance, could store solar energy from the rooftop arrays of a 40-home neighborhood for later use. This magic box is called a Vanadium redox flow battery. The heart of a flow battery are two electrolyte solutions – one positive, one negative – contained in separate tanks. When the solutions are pumped through a power cell containing a membrane, a chemical reaction takes place that generates electricity. When the process is reversed, the electrolyte stores energy…”


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