For years, utilities have grappled with how to handle the ever-growing number of solar and battery systems trying to connect to the lower-voltage grids that deliver power to customers. That’s especially true for midsize projects like, say, a solar array that might adorn the roof of a multiunit apartment complex or a community-solar project that generates power shared by hundreds of dispersed customers.
Starting on March 28, 2023, all new inverters on DER systems will be required to be smart inverters that comply with the requirements of IEEE 1547-2018.