The Deye SUN-15K is a 15kVA three-phase, grid-tied solar inverter, part of Deye's SUN series of low-voltage (LV) string inverters aimed at commercial and larger residential solar installations. As a grid-tied inverter, it converts DC power from a connected solar array into AC power synchronised with the utility grid, feeding solar-generated electricity into the building's three-phase supply — this is distinct from a hybrid inverter with battery storage; a grid-tied unit like this is built purely for solar-to-grid/self-consumption use, not for load-shedding backup power on its own. At 15kVA it suits a mid-to-large rooftop solar array serving a commercial site, farm or sizeable home with three-phase power. In the South African market this class of inverter is commonly paired with a separate battery/hybrid system where backup power during outages is required. Exact string configuration, MPPT count and efficiency figures should be confirmed against Deye's SUN-15K datasheet before a final installation design.