Green warehouse: from a voluntary matter to a condition in the lease contract

Vietnam is committed to achieving net zero emissions by 2050. The European Union has legislated its climate neutrality goal, and major shipping, retail, and manufacturing corporations have all announced their own emissions reduction roadmaps. The consequences for the Vietnamese logistics industry are very specific: international shippers are starting to ask about the emissions of the warehouses they rent.

Requirements are shifting from wish list to contract terms

A few years ago, solar panels on a warehouse roof were a bonus when marketing space for lease. Now, for multinational customers, green building certification and energy consumption data are starting to appear in warehouse leasing tenders. A warehouse that cannot answer these questions will be screened out at the document stage, before price negotiations even begin.

Levers to lock in at the design stage

A roof structure that can carry solar panel loads. This is the point most often overlooked. Installing solar panels on a roof that was not designed for the load from the start means strengthening it, and strengthening the roof of an operating warehouse is both expensive and requires halting operations.

Natural light. Properly placed skylights can cut most of the daytime lighting demand. Poor placement causes glare and raises the heat load, which in turn raises air-conditioning power consumption.

Natural ventilation and building envelope. For ordinary warehouses, most of the heat load can be handled through ventilation and roof insulation, which is far cheaper than adding cooling capacity.

Electric vehicle charging infrastructure. Electric forklifts in the warehouse and electric trucks in the yard both require charging capacity and cable routes to be sized from the start. Reserving substation capacity and spare conduits is much cheaper than upgrading later.

Refrigerants in cold storage. The choice of refrigerant directly affects emissions as well as the machine room, piping system and safety requirements — in other words, it affects the architecture, not just the equipment.

Green building certification: decide early or not at all

Green building rating systems also score items that are fixed very early: site selection, site preparation, the share of permeable area, and building orientation. If you register for certification after construction drawings are done, you can usually only pick up points in the equipment category, which is the most expensive category per point.

Cost perspective

Most of the levers above cost almost nothing extra if included from the basic design: building orientation, skylight layout, spare roof load capacity, spare conduits and substation capacity. The real cost appears only when you have to go back and modify a building that is already built. That is the whole reason this article is about design rather than equipment.

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