PGC Power Substation Practice Exam 2025 – Complete Study Resource Part 1

The term "Grid Degradation" is most appropriate when discussing a condition affecting the power grid that has been verified through Grid Impact Studies. Grid Degradation refers specifically to the deterioration of the electrical grid's performance, reliability, or efficiency over time, which can arise from various factors such as aging infrastructure, increased demand, or environmental influences.

Grid Impact Studies are conducted to assess how new projects, such as additional generation sources or load changes, may impact the existing grid. These studies evaluate potential degradation in system performance, helping to identify areas where improvements or upgrades may be needed to maintain optimal function.

The other terms listed do not capture the essence of conditions like degradation that can be quantitatively assessed through studies. Infrastructure Overhaul refers to significant changes or replacements in infrastructure rather than the condition itself. Operational Oversight suggests a management or monitoring issue rather than a specific state of the grid. Performance Analysis is more of a method or activity aimed at evaluating how well the grid is operating, rather than a condition that would be identified through a study.