An "Efficiency Rating" is a measure used to evaluate how effectively a system, device, or process uses resources to achieve its intended outcome. This rating often considers factors such as energy consumption, output performance, and operational costs. Higher efficiency ratings indicate better performance with less waste, making them important for consumers and businesses looking to optimize their resources. Efficiency ratings are commonly found in various sectors, including appliances, vehicles, and industrial machinery. For example, the Energy Star label on appliances signifies that they meet specific energy efficiency standards. Understanding these ratings helps individuals and organizations make informed decisions that can lead to cost savings and reduced environmental impact.