01
Key Developments
Free
Australia: AWS connects a new data centre to recycled water
What's New? Greater Western Water will supply recycled water from its Melton plant to a new AWS data centre in western Melbourne, the first Victorian data-centre connection designed around recycled cooling water from initial operations.
Why It Matters: The connection converts water stewardship into utility infrastructure, preserving drinking-water capacity while giving the operator a defined alternative supply and the utility a large industrial customer for expanded recycled-water production.
What's Next? AWS and Greater Western Water must complete connection assets, coordinate commissioning with the new facility, and verify annual potable-water savings as the utility begins the next upgrade phase at the Melton recycled-water plant.
Why It Matters: The connection converts water stewardship into utility infrastructure, preserving drinking-water capacity while giving the operator a defined alternative supply and the utility a large industrial customer for expanded recycled-water production.
What's Next? AWS and Greater Western Water must complete connection assets, coordinate commissioning with the new facility, and verify annual potable-water savings as the utility begins the next upgrade phase at the Melton recycled-water plant.
Global: Google adopts watershed tests for cooling choices
What's New? Google introduced water-stewardship principles requiring watershed assessment before new data-centre development and limiting water cooling to resilient sources, with air cooling or recycled water selected where local supplies face high risk.
Why It Matters: A portfolio commitment becomes a site-selection rule, linking cooling architecture to basin condition before capital is locked. That creates a clearer approval test for communities, utilities, investors, and project development teams.
What's Next? Google must disclose how watershed thresholds are applied, show when designs change because of local risk, and connect replenishment claims to site-level consumption, seasonal scarcity, and the performance of alternative cooling systems.
Why It Matters: A portfolio commitment becomes a site-selection rule, linking cooling architecture to basin condition before capital is locked. That creates a clearer approval test for communities, utilities, investors, and project development teams.
What's Next? Google must disclose how watershed thresholds are applied, show when designs change because of local risk, and connect replenishment claims to site-level consumption, seasonal scarcity, and the performance of alternative cooling systems.
Japan: Daikin and NTT DATA test predictive cooling control
What's New? Daikin and NTT DATA began a July 2026 proof of concept that predicts server thermal conditions from indirect data and coordinates HVAC, chillers, and liquid cooling at an operating Japanese data centre.
Why It Matters: Integrated control could reduce systematic overcooling without requiring access to sensitive processor data, giving operators a pathway to lower electricity use while retaining reliability across mixed air and liquid cooling infrastructure.
What's Next? The trial runs through March 2027 and must demonstrate prediction accuracy, energy savings, cost reduction, and operational automation under changing workloads before the control approach can support procurement or wider fleet deployment.
Why It Matters: Integrated control could reduce systematic overcooling without requiring access to sensitive processor data, giving operators a pathway to lower electricity use while retaining reliability across mixed air and liquid cooling infrastructure.
What's Next? The trial runs through March 2027 and must demonstrate prediction accuracy, energy savings, cost reduction, and operational automation under changing workloads before the control approach can support procurement or wider fleet deployment.
02
Technology Spotlight
Free
FreeWaterLoop: integrated facility-loop cooling
What It Does: Alfa Laval's FreeWaterLoop combines pumps, heat exchangers, and filtration in one liquid-based facility-loop system, using stable natural-water temperatures for heat transfer while returning water to its source and minimising net consumption.
Why It Matters: The packaged architecture addresses a deployment gap between high-density computing equipment and external heat rejection, reducing integration complexity while preserving a continuous cooling flow for facilities evaluating alternatives to conventional air-based loops.
Strategic Impact: Operators should test source-water permissions, thermal discharge limits, fouling risk, redundancy, and seasonal performance. Commercial value will depend on verified net-water and energy outcomes across sites, not the novelty of integrated equipment alone.
Why It Matters: The packaged architecture addresses a deployment gap between high-density computing equipment and external heat rejection, reducing integration complexity while preserving a continuous cooling flow for facilities evaluating alternatives to conventional air-based loops.
Strategic Impact: Operators should test source-water permissions, thermal discharge limits, fouling risk, redundancy, and seasonal performance. Commercial value will depend on verified net-water and energy outcomes across sites, not the novelty of integrated equipment alone.
HyperSolved: end-to-end cooling-water treatment
What It Does: Gradiant says HyperSolved integrates treatment, reuse, chemistry, digital controls, and service delivery for AI data-centre cooling water, with deployments already supporting unnamed hyperscale operators across multiple major global operating markets.
Why It Matters: End-to-end accountability can reduce interface risk among treatment packages, cooling assets, water quality, and operating teams. The claimed deployments indicate hyperscalers are buying managed water outcomes rather than assembling isolated equipment components.
Strategic Impact: Because customers and site results remain undisclosed, procurement should require independently auditable recovery, blowdown, energy, chemical, reliability, and cost data. Verified performance will determine whether integrated service models become a standard hyperscale specification.
Why It Matters: End-to-end accountability can reduce interface risk among treatment packages, cooling assets, water quality, and operating teams. The claimed deployments indicate hyperscalers are buying managed water outcomes rather than assembling isolated equipment components.
Strategic Impact: Because customers and site results remain undisclosed, procurement should require independently auditable recovery, blowdown, energy, chemical, reliability, and cost data. Verified performance will determine whether integrated service models become a standard hyperscale specification.
03
Investment Tracker
Free
Capital is moving into large AI campuses and reclaimed-water systems intended to reduce the potable-water burden of data-centre cooling.
United States: Paducah AI and HPC campus
Brookfield, NextEra Energy, and regional utilities announced a privately funded campus exceeding USD 100 billion, pairing 1.8 GW of computing capacity with generation, transmission upgrades, and battery storage at the federal Paducah site.
More than USD 100 billion
Announced
United States: Mississippi reclaimed-water system for Amazon data centres
Veolia and Amazon are developing a reclaimed-water cooling supply for Mississippi data centres. Investment diligence should test treatment capacity, seasonal availability, conveyance, water quality, backup supply, discharge, energy, operating responsibility, and benefits retained by the surrounding water system.
Not disclosed
Announced
04
Upcoming Event
Free
Advancing Data Center Cooling Innovation East — 21–23 September 2026
The three-day engineering forum convenes at the Hyatt Regency Dulles in Herndon, Virginia, bringing mechanical, thermal, and cooling specialists from hyperscalers, colocators, developers, engineering firms, equipment suppliers, and contractors.
Focus: Sessions address scalable liquid cooling, heat rejection, water stewardship, facility controls, and utility constraints, with emphasis on operating choices required for higher rack densities and AI-ready infrastructure across established and emerging eastern hubs.
Features: Decision value lies in comparing deployment evidence, commissioning practice, retrofit constraints, and water-performance measurement. Participants should test which architectures transfer across climates, utility conditions, workload profiles, and existing facility designs.
Focus: Sessions address scalable liquid cooling, heat rejection, water stewardship, facility controls, and utility constraints, with emphasis on operating choices required for higher rack densities and AI-ready infrastructure across established and emerging eastern hubs.
Features: Decision value lies in comparing deployment evidence, commissioning practice, retrofit constraints, and water-performance measurement. Participants should test which architectures transfer across climates, utility conditions, workload profiles, and existing facility designs.
Analytical edition
Continue into the analytical edition
This edition examines why peak utility capacity, alternative water, cooling performance, and community obligations must be financed together as AI infrastructure scales.
05
Analysis
Subscriber sectionSubscriber analysis argues that site-specific peak capacity, alternative supply, and auditable cooling performance now determine whether data-centre investment can secure water, approvals, and community legitimacy.
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Policy Watch
Subscriber sectionPolicy analysis translates corporate watershed rules and UNECE's regional water-energy approach into evidence requirements for siting, cooling selection, basin planning, cross-agency approval, and public review decisions.
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Market Forecast
Subscriber sectionCommercial forecasts point to sustained cooling growth and faster immersion adoption, while procurement shifts toward whole-system guarantees for energy, water, reliability, chemistry, and heat rejection.
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Research Spotlight
Subscriber sectionResearch examines peak public-water capacity and stress-adjusted computing, showing why annual portfolio volumes cannot replace location-specific, seasonal evidence for utility agreements, infrastructure planning, and operating decisions.
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Final Thoughts
Subscriber sectionThe closing judgement sets one approval test: peak water, alternative supply, cooling performance, and utility obligations must form a single auditable and financed operating plan.
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