Warehouse Automation Can Cut Carbon Emissions by 25 Percent

Logistics companies can slash their carbon footprint by up to 25 percent through warehouse automation—a climate opportunity the industry has largely overlooked, according to two new studies.

The emissions reductions stem primarily from space efficiency. Automated systems store goods more densely and at greater heights, allowing warehouses to be built 40 percent smaller than facilities relying on manual operations, according to research commissioned by warehouse automation firm Exotec and detailed in the company's annual ESG report.

The compactness advantage

The findings come from separate analyses: a life-cycle assessment conducted with ADEME, France's state ecological transition agency, and a comparative study by management consultancy Argon & Co that evaluated five different picking technologies across multiple scenarios.

Both studies identified building size and energy consumption as the primary drivers of a warehouse's environmental impact. Heating accounts for the majority of warehouse energy use, making volume reduction particularly valuable for cutting emissions.

"A smaller, denser warehouse requires less building material, less land and less volume to heat," said Andreas Stöckl, Sales Director for Exotec in Europe, as first reported by AZoRobotics. "By storing more densely and at height, the same capacity can be achieved in significantly less space, allowing companies to avoid expanding or relocating to a larger facility."

Performance versus sustainability

The research acknowledges a practical reality: warehouse managers typically prioritize operational metrics—storage capacity and fulfillment speed—over environmental considerations. Automated systems address both concerns simultaneously.

While warehouse robotics consume more electricity than manual equipment, the studies found that reduced construction requirements, lower heating costs, and performance improvements more than offset the increased power draw.

"Automation is not about reducing floor space for its own sake, but about extracting maximum performance from every square meter you already have," Stöckl noted. "That way you can grow without building anew, and that is where the real environmental gain lies."

Material innovation adds further gains

Beyond spatial efficiency, Exotec has reduced the carbon footprint of its Skypod II automated warehouse system by incorporating green steel—manufactured from up to 80 percent scrap metal in electric arc furnaces. This material substitution cuts a system's carbon footprint by nearly 30 percent, equivalent to more than 600 tons of CO2 per installation or the annual energy consumption of 240 UK homes.

Since July 2025, the company has included carbon impact figures in customer quotes, enabling procurement teams to evaluate climate costs alongside financial ones.

Why it matters

As regulatory pressure on supply chain emissions intensifies, warehouse operations represent a significant but underutilized lever for decarbonization. The research suggests that automation delivers climate benefits not through incremental efficiency gains but through fundamental changes in facility design—allowing companies to meet growing demand without proportional increases in physical infrastructure. For logistics operators facing sustainability mandates, the findings position warehouse automation as both an operational and environmental investment.

The studies and ESG report were first detailed by AZoRobotics.