Join Us At CES

Joseph Gottlieb, CTO, Thursday January 6, 2022


Join us here at CES (North Hall, Booth 9036) as Rhombus Energy Solutions introduces our latest innovation in DC fast charging and smart inverters: our “Rushmore” architecture. Rushmore utilizes Silicon Carbide (SiC) technology to simultaneously provide a smaller physical footprint AND higher efficiencies than IGBT-based technologies. The Rushmore module we are introducing at CES 2022 is just the first step in a robust 2022 product development roadmap of new charger products and charging infrastructure that will provide maximum flexibility in EV charger deployment.

Rhombus Energy Solutions’ next-generation “Rushmore” EV charging technology and architecture is based on silicon carbide semiconductor technology which has significant advantages over insulated-gate bipolar transistor (IGBT) based EV charger technology. This architecture provides improvements in power efficiency, reliability, and modularity, while enabling significant reductions in product footprint.

The first building block of Rhombus’ Rushmore architecture is a bidirectional 60kW AC/DC power conversion module. SiC technology has a variety of positive attributes for EV charging and power inverter use cases relative to IGBT technology including the ability to switch at significantly higher frequencies than IGBT-based designs. This enables components such as magnetics to be considerably smaller, reducing the physical footprint and weight of the charger/inverter circuitry by up to 50%. SiC-based EV chargers and inverters are more efficient than the equivalent chargers and inverters based on IGBT technology. SiC efficiencies can be as high as 98%, compared with typical IGBT efficiencies of 90%-95% increasing overall system reliability. By harnessing SiC technology, we can package various power stages into a modular, 4U building blocks that gives flexibility in configurations and power levels of both EV chargers and power inverters.

Rhombus is very proud of our contributions to the deployment of V2X-capable, high-reliability, made in the USA high-power DC fast charging systems for M/HD EV fleets. Our market-leading bi-directional EV charging systems (which are designed from the start for the needs of fleet operators) are designed and built in the USA. Rhombus also excel in the design of high-power smart inverters for next-generation renewable energy and energy storage deployments. Our expertise in energy management system (EMS) software is also embedded in our VectorStat EMS controller and software which is embedded in our EV charging systems and smart inverters. We have built over a thousand V2G-capable high-power, high-reliability chargers and bi-directional smart inverters for a variety of different sizes and classes of EVs.

Find out how we can help you by contacting us at, or by reading our Vehicle to Grid Solution Brief.