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            Manufacturer / Railway company:
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               Calnetix Technologies LLC 
             
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          | Description:
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          Calnetix has built and implemented Flywheel based Wayside Energy Storage and Recovery Systems for Metro Rail Applications. These systems are add-ons to existing metro rail networks and can be implemented with minimal disruption or additional infrastructure. 
             
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          | Advantage for energy efficiency:
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          save upto 20% energy consumption and provide an attractive payback 
             
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          | Availability / Level of development:
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          Mature, in production, projects already implemented and running since 2014 
             
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          | Remarks:
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          Flywheels are a very reliable and compact energy recovery option with stable operation in wide environmental conditions and long life with 100 second cycling capabilities, best suited for Metro Rail energy savings applications 
                    
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