The Growing Energy Challenge

Data centers are scaling rapidly with AI workloads, and cooling remains a major driver of operating cost and electrical capacity constraints. In many facilities, cooling can represent a large share of site electricity use, and heat rejection adds stress to dense urban environments.

Key pressure points:

• Rising rack densities increase thermal bottlenecks

• Cooling power competes directly with IT power

• Most rejected heat is low-grade and hard to reuse efficiently

Cross-Sectional Facts

• Data centres and data transmission networks each account for roughly 1–1.5% of global electricity use; estimated data centre electricity consumption in 2022 was 240–340 TWh (excluding crypto mining).

• Cooling can account for up to ~40% of total data center energy consumption in some facilities.

• Electricity demand is rising quickly with AI workloads, increasing the urgency for high-efficiency thermal strategies.

• Crypto mining energy use is estimated around ~110 TWh in 2022.

Thermal Management Challenges

AI and high-performance computing increase heat density, pushing traditional air-based cooling toward its limits. Liquid cooling improves heat transfer and supports higher rack power, but it still leaves a key problem: the extracted heat is often low-grade, and without upgrading it, most sites can’t reuse it effectively.

What this creates:

• Higher heat flux per rack

• More complex cooling architectures

• A growing gap between “heat removed” and “heat reused”

Inefficient Heat Utilization

Most data center cooling systems reject waste heat to ambient without extracting further value. This is a missed opportunity: the site already produces a continuous thermal stream that can be upgraded into useful cooling or exportable heat—if the conversion pathway is efficient and integration-ready.

Reliability and Downtime Risks

Thermal instability directly impacts reliability. Inadequate cooling increases component stress, accelerates failure rates, and raises the probability of unplanned downtime. High availability requires stable thermal control, redundancy, and operational transparency—without excessive energy overhead.

Innovative Solutions with Savery Technology

Savery upgrades low-grade waste heat into valuable thermal output: heat-driven cooling plus exportable heat for reuse. The system is designed for high-density racks and variable operating conditions, reducing compressor dependency while maintaining stable thermal control.

Outcome focus:

• Lower cooling electricity and compressor load

• More usable electrical capacity for IT

• Heat reuse opportunities instead of heat rejection