A fuel cell generator is a device that generates electricity through a chemical reaction between hydrogen and oxygen in a fuel cell. The fuel cell combines hydrogen fuel with oxygen from the air to produce electricity, water, and heat. Unlike traditional generators that burn fossil fuels, fuel cell generators produce clean energy with water vapor as the only emission. They are used in various applications, including backup power systems, remote power supplies, and as a clean energy source for homes and businesses. Fuel cell generators are valued for their efficiency, reliability, and environmental benefits.