One of the benefits of periodic blackstart testing is what?

The correct choice emphasizes the significant advantage of blackstart testing, which is to equip operators with the essential skills to effectively implement blackstart procedures for generators. Blackstart refers to the process of restoring a power station to operation without relying on the external electricity supply. By participating in blackstart tests, operators learn the practical aspects of initiating a generator from a shutdown state, ensuring they can respond efficiently in an actual blackout scenario.

These tests simulate the re-energization of the system and provide hands-on experience. Operators are trained to navigate the specific challenges of blackstarting a generator, such as understanding the generator's functions, integrating with other system elements, and coordinating with other utilities. This training is crucial because it directly impacts the system’s resilience and the ability to restore power quickly and reliably during an outage.

While other options may point to useful aspects of blackstart testing, such as the overall system restoration plan or the operation of island systems, the direct training for operators on blackstarting processes is a core benefit. This focus on practical skills is vital for maintaining operational readiness in the face of potential large-scale power outages.