Systems and methods for air cooling of equipment in data center campuses

A system comprising:

• multiple buildings including a first building and a second building disposed in close proximity to each other, each of the buildings having a first end configured to receive ambient supply air from an exterior environment and a second end configured to output exhaust air to the exterior environment, each of the buildings being a multi-floor building containing multiple computing devices,
• wherein the computing devices in each building are configured to generate thermal energy that is transmitted to the supply air, thereby heating the supply air into the exhaust air before the exhaust air exits that building,
• wherein the first end of the first building is a closest end to the second building and the first end of the second building is a closest end to the first building,
• wherein the first end of the first building and the first end of the second building form portions of a supply air corridor between the first building and the second building,
• wherein each floor contains at least some of the multiple computing devices arranged in racks having a supply air side and an exhaust air side, the supply air side and the exhaust air side alternating between adjacent floors, and
• wherein at least one of the buildings comprises at least one grate disposed between the adjacent floors and configured to allow a portion of the supply air to flow from the exhaust air side of a lower floor to the supply air side of a higher floor that is adjacent to the lower floor when a temperature of the portion of the supply air meets a temperature requirement for the higher floor.