Case Studies › Data Centers
Case StudyHyperscale Data CenterESG / WUEIndependent · No Chemistry Sold

Hyperscale data center improves WUE by 25% and saves 136.8M gallons of water per year — with Tier 3 / Tier 4 availability intact

A hyperscale data center operator was constrained by water quality and cooling-water chemistry. High calcium, high alkalinity and a phosphate-based program held the system to only 3 cycles of concentration — driving water demand, sewer cost and an ESG / WUE position that blocked expansion into preferred locations.

Unit Served
Hyperscale data center · Main cooling
Key Issue
3 CoC ceiling · Phosphate program
Risk
WUE / ESG · Expansion blocked
WUE Improvement
25%
Water Saved
136.8M gal / yr
Challenge — What Was Happening

A hyperscale data center operator was being blocked from expanding into preferred locations by its water consumption footprint. ESG targets and local water authority constraints required a materially lower Water Use Effectiveness (WUE) metric.

High-calcium, high-alkalinity makeup water combined with an existing phosphate-based cooling water program limited the system to only 3 cycles of concentration. This drove high makeup water demand, high blowdown volume, high sewer load, and a deteriorating WUE position.

The operator needed to improve WUE without any compromise to Tier 3 / Tier 4 availability — meaning all corrosion and deposition KPIs had to be maintained or improved through the program transition.

Intervention — What We Did

Conducted a 3-year review of water quality data, cooling tower operating logs, and operator and service provider records. Performed onsite evaluation and structured interviews with both operations and water treatment service teams.

Applied advanced saturation modeling and proprietary closed-loop particle-size prediction with failure forecasting — determining the maximum achievable cycles of concentration at the site's makeup water chemistry without compromising system integrity.

Redesigned the chemistry program: non-phosphate organic/polymeric chemistry, no inorganic corrosion inhibitors, automated chemical-feed resiliency mechanisms, and online monitoring for real-time verification — all corrosion and deposition KPIs maintained or improved.

Measured Outcomes
  • Cycles of concentration: Increased significantly above previous 3-CoC ceiling — enabling the step-change in water consumption reduction.
  • WUE improvement: 25% — verified against site-metered makeup water and ESG reporting data.
  • Water saved: 136.8 million gallons per year.
  • Availability: Tier 3 / Tier 4 maintained throughout — all corrosion and deposition KPIs met or improved under the new program.
  • Expansion: Campus expansion into previously blocked locations unblocked by improved water footprint.
136.8M gal/yr
saved · 25% WUE improvement · $150,000/yr chemical + sewer cost reduction
WUE Improvement
25%
Water Saved
136.8M gallons / yr
Chem + Sewer Cost
$150,000 / yr
Availability
Tier 3 / Tier 4
Expansion
Unblocked
Data centers have multiple critical failure points across main cooling, closed cooling and TCS loops. The right water-chemistry decisions unlock WUE, cost and expansion at the same time — without trading availability. Most systems can be reviewed remotely. Your system deserves a look.

Is your data center's WUE limiting expansion or ESG targets?

Independent cooling water program review for hyperscale and enterprise data centers. No chemistry sold. Advanced saturation modeling and WUE optimization included.