This read-write integer stores the wattage threshold an administrator sets to trigger a near-overload warning on this specific metered PDU outlet. It lets the admin get an early alert before a connected device's load approaches the outlet's true overload limit, rather than being surprised by a hard trip. For example, on an outlet rated for higher draw, an admin might set this threshold to 80 percent of the outlet's overload threshold so the PDU flags rising load before the circuit is actually overloaded.