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Myths Regarding Electric Vehicles- Myth #6 The Grid Will Crash!

(Rick Sanders, CEO, Tuesday, October 15, 2019)

There are many myths regarding electric vehicles. Myth #6 on our list is the concern that the electricity demand created by electric vehicle use will crash the grid because the supporting infrastructure doesn’t exist.

However, even if a quarter of all cars on the road were electric, today’s grid could handle it. Beyond that 25%, the electrical infrastructure will have to be updated to meet the demand, including new transformers and modernizing the grid to accept power back from car batteries. Consider this:

As grids get smarter, through sensors and software, they can support electric cars that charge and discharge at various times so that electricity use can be stabilized throughout the day and night. That’s good for utilities because it makes generation requirements constant and predictable. Someone – whether user, manufacturer, or government – will pay for the extra demand, so utilities can look forward to lots of revenue that didn’t previously exist.

Research indicates that new sources of electricity are mostly from renewable energy sources, each substituting for a prior fossil-fuel approach. This results in a decreased emissions trend that makes up for any increased demand for electricity from electric vehicles. In fact, according to Navigant Research, the United Stated can add millions of electric vehicles to the grid without adding any new power plants due to the fact that most electric vehicles are charged over night during off-peak hours. Additionally, in areas with a lot of electric vehicles, utilities such as Pacific Gas & Electric, Southern California Edison, and SDG&E are modernizing the power grid infrastructure to meet the expected growth in electric vehicle usage.

One area of concern regarding the grid that is valid is the creation of “choke points” (spots in the grid with limited energy carrying capability”, “hot spots” (places in the grid with very high energy usage for all or part of the day), and how the combination of these can create issues of power availability, particularly for fleet charging infrastructure for electric vehicles (EVs). One of the technologies we are working on at Rhombus is energy storage systems/microgrids for fleet charging of EVs. Microgrids are defined as having at least one energy storage system, at least one source of energy and at least one load of energy. As the number of nodes increase, so does the complexity of managing the flow and balance of energy in the system. Our power inverters operate at the hub of a microgrid, controlling the flow of energy between multiple supply and demand nodes. You can find more information about our offerings at

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