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FreeWire partners with Siemens on mobile charging system; project first US use of Siemens’ eCar Operation Center technology

FreeWire Technologies, Inc. and Siemens are partnering to pilot and commercialize the Mobi Charger (which uses onboard second-life EV batteries), employing the Siemens eCar Operation Center (OC) and the Siemens VersiCharge electric vehicle-charging technology. Mobi Charger rolls the charger to the vehicles, regardless of where they are parked in the lot. The Mobi is capable of dual Level 2 and Level 3 Fast Charging.


The integrated system enables businesses to easily offer mobile EV-charging, cost-efficiently powered by second-life EV batteries, and intelligently interconnected to the Internet and electricity grid.

FreeWire and Siemens will be operating a three-month pilot at LinkedIn’s Mountain View campus, providing access to hundreds of employees who drive electric vehicles.

Siemens has chosen FreeWire to be the first partner in the US to deploy its eCar Operation Center, a cloud interface built from the ground up to manage large-scale EV charging. The system is already in wide-spread operation by several of the world’s largest utilities, enabling them to use EV charging as a resource to support grid stability, and distribution networks across Europe.

Current EV-charging options usually require high infrastructure investment costs plus the delay and hassles of planning and permitting, challenges that may be further complicated by being on leased commercial property. Using Mobi Charger, businesses would be able to rapidly scale-up to meet demand for charging availability, while gaining a flexible, distributed-energy asset they can use to efficiently manage energy usage and costs.

Mobi Charger presents an easy, alternate solution with additional benefits. A single Mobi, integrating Siemens’ VersiCharge technology and powered by smartly repurposed second-life EV car batteries, can charge five cars per day and use lower-cost, off-peak energy. Siemens’ eCar OC includes useful interfaces for the EV driver, the Mobi manager, and the electricity-rate payer, and can provide predictive visibility for the utility. Mobi units may be leased or purchased.


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