The FESS technology uses electromechanical techniques - not chemistry - to store energy and apply it very efficiently and quickly when the demand is present.
Chemical batteries, currently considered the “state of the art” for hybrid vehicles and so-called “plug-in electric cars” are characterized by vast inefficiencies and short life cycles.. These batteries also have slow energy acceptance, safety risks and prohibitive cost, thus limiting their market capability.
The development of the FESS is being accomplished under a technology development program that will result in a low-cost and high efficiency solution, allowing for storage of almost six kilowatt hours (5.8kWh) of electricity to be used at the exact moment of necessity as dictated by the consumer.
The target retail price of the FESS is $150-250 per kWh, compared to $1000 per kWh for leading lithium-ion battery providers. The product will be optimized for charge times of 40 seconds or less for integration into the transportation market, with efficiency exceeding 90%. Drawdown times for the FESS will be approximately 12 hours, compared to months for chemical batteries.