What is a critical factor to consider when deciding to share resources across control areas?

When deciding to share resources across control areas, system reliability is a critical factor because it ensures that the interconnected electrical grids can operate effectively and safely. Maintaining system reliability involves evaluating the capacity and stability of both the receiving and supplying systems, assessing the potential impacts of resource sharing on grid operations, and ensuring that any transfers do not compromise the reliability standards established for each control area.

Sharing resources can improve efficiency and reduce costs, but it must be done in a manner that preserves the overall reliability of both systems involved. Any imbalances or failures in one area can have cascading effects across interconnected grids, potentially leading to blackouts or system instability. Therefore, ensuring that reliability criteria are met is paramount for successful resource sharing.