HT Materials Science (HTMS), a global leader in advanced heat-transfer solutions, is scaling deployment of its Maxwell fluid additive to 15 Amazon fulfillment centres across the United Kingdom, Germany, France and Italy.
The expansion follows a pilot at three UK fulfillment centres that cut HVAC cooling energy consumption by up to 14%, with no equipment replacement, capital outlay, or facility downtime required.
HTMS's Maxwell technology was selected as a top-three finalist from 649 applicants to Amazon's Sustainability Accelerator Climate Tech Program, a competitive initiative that pairs Amazon's global operations with early-stage climate technology companies developing solutions to real infrastructure challenges.
The selection gave HTMS the opportunity to pilot Maxwell directly within Amazon's fulfillment network, testing the technology's performance under the demanding, always-on conditions of large-scale logistics facilities.
HT Materials Science CEO, Tom Grizzetti, said organisations that cannot wait for new grid infrastructure to be built are finding that this solution gives them a meaningful path forward today.
“The demand for what we do is accelerating,” he said.
Maxwell was piloted across three Amazon fulfillment centers in the UK — BHX3 (Daventry), BHX4 (Coventry) and LBA2 (Doncaster) — ranging from 600,000 to 1 million square feet.
The product is a drop-in nanofluid additive, composed of inert, non-toxic aluminum oxide nanoparticles suspended at just 2% concentration, installed directly into each site's existing closed-loop chilled water system.
By enhancing heat transfer coefficients by up to 15%, Maxwell enabled each site's HVAC system to move thermal energy more efficiently between building spaces and cooling equipment.
The pilot delivered:
- Up to 14% reduction in HVAC energy consumption
- An estimated 75,000 kWh in annual energy savings
- A simple payback period of 2.25 years and 15% ROI
- Positive 3-year NPV Installation took place during normal operations, with no facility downtime, and was completed in roughly one day per site.
Maxwell's Monitoring and Maintenance Unit (MMU) automatically tracks fluid density, pH and system pressure to maintain optimal nanoparticle concentration without manual intervention.
The fluid is non-corrosive and fully reversible, and results were measured in accordance with the International Performance Measurement and Verification Protocol (IPMVP).
The strength of the UK pilot results led Amazon to expand the Maxwell rollout to 15 fulfillment centres across the UK, Germany, France and Italy.
The expansion reflects a broader pattern for HTMS: Maxwell has now been deployed across 57 projects in 14 countries, spanning sectors under the greatest energy efficiency pressure.
Beyond Amazon, recent deployments include Morgan Stanley/CBRE at 1633 Broadway in New York City (a 12.4% increase in chiller operating efficiency), ENI's oil and gas facility in Italy (15.4% reduction in energy consumption), and additional installations with Tabreed, Ericsson and Dignity Health.
“What you see across these deployments is the same result: meaningful efficiency gains with no disruption to operations,” Grizzetti said.
"That consistency across very different environments is what makes this technology compelling for high-volume infrastructure.”
As enterprise cooling demand continues to outpace new energy infrastructure, HTMS expects Maxwell deployments to expand across additional high-demand sectors throughout 2026.