Amid heavy power flow from West to East and low voltage in the East, what should the System Operator do first?

In scenarios where there is heavy power flow from one geographical area to another—like from West to East—while the Eastern grid is experiencing low voltage, the priority for the System Operator is to enhance voltage support in the affected area. Ensuring that all available capacitors are in service serves this purpose directly.

Capacitors are essential components in the electrical system, as they help regulate voltage levels by providing reactive power support. When voltage levels drop, typically due to high demand or excessive power transfer, activating capacitors can help to boost the voltage and stabilize the system. This action aids in maintaining system reliability and prevents further complications like voltage collapse, which could lead to more significant operational issues or even blackouts.

The other options, while they may be considered in managing the grid under certain conditions, do not prioritize the immediate need to address low voltage as effectively as activating capacitors. Taking lines out of service could exacerbate the situation, decreasing transmission capability and potentially leading to greater voltage issues. Putting reactors in service might have its place, but their primary function is to absorb reactive power and would not help in boosting low voltage conditions. Shedding load is a last resort and is typically deployed when other measures have failed or when the system is at risk of failing