What should a system operator do if system voltage continues to decline after exhausting all resources?

When faced with a situation where system voltage continues to decline despite utilizing all available resources, the primary objective is to stabilize the system and prevent further deterioration. Shedding load in the low voltage area is a critical measure because it directly reduces demand, which helps to balance the supply-demand equation.

As load is shed, the remaining operational generation resources can effectively support the system voltage and help restore it to acceptable levels. This method prioritizes maintaining overall system reliability, preventing potential cascading failures or blackouts that could occur if voltage drops too low.

In contrast, increasing generation output may not be an effective solution if there are constraints on generation or if the existing generation is already maximized. Notifying regulatory authorities is vital for accountability and compliance, but it does not address the immediate issue of voltage stabilization. Reconnecting disconnected loads would only exacerbate the problem by further increasing demand, which is counterproductive in a low voltage situation. Therefore, shedding load is the strategic and necessary action to mitigate the ongoing decline in system voltage.