The Future of EV Charging Part 2: Integration with Renewables, Storage, and the Grid

Rick Sander, CEO, Tuesday June 29, 2021

In our final blog of this series, we want to explore the positioning of EV charging within the larger market ecosystem. As our transportation sector moves from fossil fuel-powered vehicles to electrified vehicles, the demand for electricity will necessarily increase. While this will be offset by increase production of renewable energy (at least partially!) and a reduction in the electricity used to turn natural resources into usable fossil fuel, there are some well-known “misalignments” between renewable energy availability and the expected increased demand. The biggest potential misalignment is that most renewables (especially PV solar) generate energy during the day, while most EVs are charged in the evening during peak hours, or at night (less of a problem). Interestingly, these sorts of issues are effectively a microcosm of the larger issues as distributed energy resources (DERs) become more prevalent.

The easiest way to avoid these sorts of misalignments is with greater integration between chargers and the rest of the ecosystem. For the utility grid this is known as Vehicle to Grid (V2G) technology, which is making considerable headway across the US today. The integration between chargers and renewable energy resources is another priority since many commercial vehicle yards have room for PV solar resources. Incentivizing the integration of these resources into a “smart grid” is one area where state and federal governments can have an impact. The final leg of the stool is energy storage, which provides a means to “time-shift” energy to when it is needed. Since energy storage resources require significant up-front investments, they also represent is an area where federal and state governments can help speed their deployment by providing increased tax incentives for storage that is integrated with EV charging solutions.

And if you are looking for made in the USA high-power DC fast charging systems for those EVs, look to Rhombus Energy Solutions. 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 excels 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.