Energy Storage Systems (ESS, Inc.) brings deep experience in fuel cells, electrochemistry, advanced material science, and renewable energy. The breakthrough 50 kW/400 kWh Iron Flow Battery (IFB) integrates proprietary and patented all-iron electrolyte with low cost and non-toxic materials that enables us to offer one of the lowest installed cost/kWh storage systems in the market.

ESS Inc. envisions future limitations of Li-ion in the next frontier of flexible, long-duration storage and sees flow batteries, and especially the all-iron flow battery with its fast response time and limitless cycling, as being capable of making a future of energy storage capabilities a reality today.

ESS Inc. is poised to lead project developers, utility representatives, and EPC’s in the transition to a more flexible, longer-duration energy storage asset that can be used in many different use cases and for many different durations of time from 2-8 hours when responding to increased penetration of renewables. The IFB provides the flexibility to install a storage asset today that will be able to react to the emerging applications and use cases of the future.

ESS has cracked the code to keeping traditional iron chemistry stable for thousands of deep charge and discharge cycles with no degradation; users can expect over 20,000 cycles at over 80% depth of discharge during a 25-year life, with minimal maintenance.

SimpliPhi offers unparalleled off-grid power to everything; including U.S. troops in Afghanistan and Iraq, to rooftops for Whole Foods and Airbnb. We provide patented energy storage systems that are safer and more efficient than any others in the market.

“Although cobalt-based batteries were a revolutionary improvement from the lead acid, nicad and NiMH batteries; the need to mitigate drawbacks such as potential for fires, temperature sensitivity and limited high output,” led to the first lithium ferrous phosphate (LFP) battery cell prototypes in 2007.

Catherine and Stuart expanded into new global markets that need reliable, off-grid power solutions that offer a longer life cycle and that don’t build up excessive heat and don’t risk dangerous thermal runaway.

We provided silent, portable, durable and non-toxic solar energy systems with SimpliPhi batteries that are now used by the military in Afghanistan, Iraq and other countries.  Our stealth power systems have dramatically reduced the number of fuel transport-related casualties.