Question

What is the largest loss-of-generation event in the U.S. Western Interconnection as recognized by the North America Electric Reliability Corporation?

Short answer

The event was the failure of generating the unit at Palo Verde Nuclear power plant.

Step-by-step solution

Loss of generation event.

The loss of generation event is the case when the power generated by the generating station is not sufficient to meet the demand due to overload or the fault in the generating units. In that case there is large voltage drop at the consumer end. Sometime this leads total black out at the consumer end also.

Determine the description for the answer.

The loss of generation event in the US western connection that is recognized by North America Electric reliability corporation is the case when two of the generation unit located at Palo Nuclear power station that generates 2690 MW. The power plant at that time produced 35 percent of the total electric demand of North America.

Therefore, the event was the failure of generating the unit at Palo Verde Nuclear power plant.