A solid investment
opportunity in the booming energy
management economy.

Rhombus power control systems allow electrical energy to be harnessed from renewable sources and then stored to be converted for usable electricity in numerous commercial applications. Our goal is to continually improve how electrical energy is converted, transformed and managed in the energy infrastructure of the future. As renewable sources become more prevalent and the grid transforms to a distributed architecture, the need for Rhombus’ intelligent, efficient, energy management solutions becomes imperative.

Rhombus is well-positioned to succeed in an expanding energy storage sector with enabling technology

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Rhombus Has a Clear Advantage

Product Reliability

Robust products engineered together with leading technology firms using the latest technologies.

Proven product reliability with units operating in the field for more than 10 years without warranty defects.

Speed to Market

Fast prototyping via in-house manufacturing and testing

Vast experience in UL certification process using own high power lab

Customization

Ability to develop customer specific solutions in all power ranges

Lower product development costs than competitors

Top notch engineers with long track record of engineering advanced power conversion systems

Product Reliability Speed to Market Customization

Robust products engineered together with leading technology firms using the latest technologies.

Proven product reliability with units operating in the field for more than 10 years without warranty defects.

Fast prototyping via in-house manufacturing and testing

Vast experience in UL certification process using own high power lab

Ability to develop customer specific solutions in all power ranges

Lower product development costs than competitors

Top notch engineers with long track record of engineering advanced power conversion systems

Board of Directors

Richard J. Sander | CEO

BSME/MBA. Prior Rhombus Energy Solutions, Sander served as President and CEO of ISE Corporation, a hybrid drive system and energy storage supplier for heavy duty vehicles. Previous roles include Vice President of Worldwide Operations at…

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Joseph Gottlieb | CTO & Director

BSEE/MSEE. Prior to Rhombus, Gottlieb founded Flux Power, Inc., a lithium battery management technology company. Gottlieb is an expert in battery technology and BMS design.  In 2007, JG developed the world’s first hybrid-electric sport boat which included…

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Robbie Diamond

Mr. Diamond is the Founder, President and CEO of Securing America’s Future Energy (SAFE). In 2006, he joined together with Frederick W. Smith, Chairman, President, and CEO of FedEx Corporation, and General P.X. Kelley, USMC…

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Parker Hinshaw

Throughout Parker’s thirty-five year professional career, he has served in numerous leadership roles helping hospitals and provider organizations with IT strategies and operations. After fifteen years of developing and implementing systems for Community Hospitals of…

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James McCall

Mr. McCall is currently the VP of Energy and Commercial Services at TechFlow, Inc. Prior to TechFlow, he spent 30 years with SAIC. He was a Senior Level Executive in both Line Management and Business…

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FAQs

Why is a grid isolation transformer important?

A grid isolation transformer gives the system a higher degree of safety with galvanic isolation, improves transient stability, reduces radiated emissions, and allows for wider and more user configurable AC line voltage and DC bus voltages.

How do the multi power stage products work?

Rhombus products that have multiple power stages allow flexibility in how the system is configured. The power stage inputs are independent allowing them to be paralleled for increased power or split for separate applications. An example is that one power stage can be connected to a battery and the second power stage can be connected to solar.

Why is four quadrant, bi-directional power conversion important?

Bi-directional power conversion combines the ability to push and pull power to and from the grid and/or a battery. This allows a system to combine functions like charging and discharging a battery without needing a separate inverter and battery charger. Multi-quandrant capability can support new grid needs for reactive power control. Rhombus systems automatically detect the grid availability and change the operating mode as required.

Is off-grid or island mode possible?

Yes, all of Rhombus’ products are capable of operating without being connected to the utility’s grid. Sensors detect when the grid is not available and automatically configure the system to off-grid mode drawing energy from the battery or to power the critical loads. Off-grid mode runs the product in AC output voltage control mode maintaining a clean sinewave output at the requested voltage and frequency.

Can the Rhombus Power Control Systems (PCS) be paralleled?

Yes, both on-grid and off-grid, the PCS can be paralleled in voltage or current mode. Each PCS can contribute to maintaining voltage on the output in off-grid mode and contributing to the amount of current injected onto the grid when on-grid. By paralleling PCS’s you can connect to multiple DC or AC sources while increasing the output power depending on how many units you parallel.

What is VectorStat®?

VectorStat® is a group of energy management controllers with integrated energy software and database, networked in a distributed architecture. VectorStat® operates as a peer-to-peer concept, where each node or controller represents a PCS or a controller connected to third party equipment or the software can operate on a PC or can reside in the Cloud. All of the controllers or nodes are in constant (user defined), peer-to-peer communication with each other. The software operating system has a well-defined interface that allows Applets to be used for various applications. The combined computer processing capabilities enable complex optimization algorithms and provide intelligent communications over smart power networks.

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Resources

Distributed Generation Market

As the cost of solar energy is going down, the installed capacity is growing rapidly across the world.
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Distributed Energy Storage Market

The energy storage market is growing faster than solar in the U.S. and across the world.
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Microgrid Market

Software makes up 5% of a $12.1 billion total addressable microgrid market.
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