PJM Generation Dispatcher Practice Exam 2025 - Free Dispatcher Practice Questions and Study Guide

Question: 1 / 400

What is the term for the reliable supply of power during peak demand?

Firm capacity

The term "firm capacity" refers to the reliable supply of power that can be counted on during peak demand periods. This concept is critical in power systems management because it ensures that there are adequate resources available to meet the highest levels of electricity consumption. Firm capacity includes generation resources that are always available, regardless of conditions such as weather or market fluctuations, thereby providing a dependable source of electricity during times when demand is at its peak.

Essentially, firm capacity signifies the amount of power that a utility can reliably deliver to its customers and is pivotal for maintaining the stability and integrity of the electricity grid. It plays a crucial role in generation planning and operation, ensuring that utilities can fulfill their obligations to provide power even under stress conditions, such as during extreme weather or unexpected outages of generation sources.

In contrast, reactive power, load shedding, and peak shaving refer to different aspects of managing power quality and demand, but they do not specifically denote the reliable power supply characteristic that firm capacity provides. Reactive power relates to maintaining voltage levels in power systems, load shedding is a strategy to reduce demand during critical times by disconnecting loads, and peak shaving involves reducing the peak demand on the system using various means, but none of these terms encompass the guarantee of available power like firm

Get further explanation with Examzify DeepDiveBeta

Reactive power

Load shedding

Peak shaving

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy