The information storage and processing system known as “the cloud” actually consists of the many data centers built around the world. Each data center is built by a company or agency, typically to do their own computing, though there are some third-party data centers which rent out their processing power to the companies that don’t have data centers of their own. Because data centers have a very high power density, power management and cooling are absolutely vital to their maintenance, and there’s a booming business just in systems to help with the cooling and power management of data centers. In case you want to know more about data centers and how they operate, here’s a useful article on the topic we think you’ll like: https://whartdesign.com/data-centers-are-the-key-to-the-cloud/