What is one of the main objectives of PJM during peak load conditions?

One of the main objectives of PJM during peak load conditions is to increase reactive power output. Reactive power is crucial for maintaining voltage levels across the transmission network, especially during times of high demand when voltage stability can be compromised. By increasing reactive power output, PJM helps ensure that there is enough voltage support in the system, which is necessary for the reliable operation of electrical devices and to avoid voltage collapse. This proactive management of reactive power is vital in maintaining system balance, preventing outages, and ensuring continued service to consumers during periods of peak load.

In contrast, the other options would not effectively address the challenges faced during peak load conditions and could lead to additional issues in voltage stability or system reliability.