263 AHUs and 15 Chillers for a Large PV Production Base

A project measured in buildings, not rooms

A photovoltaic production base is not one cleanroom — it is a campus of process buildings, each with its own cleanliness class, temperature and humidity targets, and each running near-continuously. The HVAC scope for such a site spans 263 air-handling units and 15 chillers, coordinated so that the plant runs as one system rather than hundreds of independent machines.

What Taile delivered

• 263 air-handling units covering clean zones, process areas and support buildings, each matched to its local cleanliness and humidity class.
• 15 chillers as the central chilled-water plant, staged so cooling capacity follows load without waste.
• Chilled-water distribution sized so distant buildings see the same supply temperature as the plant room.
• Central monitoring so the whole campus is controlled and commissioned as one system.

The hard part is coordination, not capacity

On a project this size, buying enough equipment is the easy part. The difficulty is sequencing — delivery, installation and commissioning have to track the construction schedule of each building, and a delay in one building cannot be allowed to stall the rest. Standardizing on a smaller set of unit types kept spares simple and let crews move fast.

Key figures

• 263 air-handling units across clean, process and support areas
• 15 chillers forming a staged central chilled-water plant
• Campus-wide monitoring and commissioning as one system
• Standardized unit types to keep installation and spares efficient