With rapid adoption of electric vehicles and bulk installation of solar photovoltaic power systems, electric-vehicle (EV) charging—especially fast charging—and solar power availability pose a challenge for the utility grid. Overall, the grid lacks the capacity to deliver high power and store surplus solar electricity.
In particular, the increasing connection of alternative-energy sources to the low- or medium-voltage grid requires accelerated development of power-efficient, reliable energy systems and integration with grid-connected resources such as energy-storage systems and EV charging infrastructure. For example, many residences now use a combined solar-energy generation and battery energy-storage system to make energy available when solar power isn’t sufficient to support demand.