Gas generators are devices that convert fuel, typically natural gas or propane, into electrical energy. They work by using an internal combustion engine that burns the gas to produce power. These generators are commonly used for backup power in homes, businesses, and construction sites, providing electricity during outages or in remote locations. The efficiency and environmental impact of gas generators can vary based on their design and the type of fuel used. Many modern models are designed to be more eco-friendly, emitting fewer pollutants compared to traditional diesel generators. They are also often quieter, making them suitable for residential areas.