♻️ Achieving More Sustainable Data Centers through Waste Heat Recovery

As cloud computing, AI servers, and data center infrastructure continue to expand globally, energy consumption and carbon emissions have become critical challenges for corporate ESG goals. According to Servertech’s latest report, building a sustainable data center depends not only on efficient power management (PDU, UPS, cabling design) but also on partnerships with innovative energy-saving technology providers.

That’s exactly where Galaxy focuses — turning waste heat from data center operations into reusable green power.

🔥 Turning Waste Heat into Renewable Energy

In typical data centers, servers, switches, and power conversion equipment generate enormous amounts of heat during operation. Most of this energy is expelled through air-conditioning or liquid-cooling systems, creating significant energy waste.

Galaxy’s TEG (Thermoelectric Generator) modules can directly convert this waste heat into electricity. These compact devices can be installed on hot surfaces such as server backplates, transformer housings, or cooling-pipe walls, utilizing the Seebeck Effect to generate continuous power:

• Hot side: server exhaust surfaces or power rack enclosures
• Cold side: liquid-cooling modules or chilled plates
• Output power: supplies energy for cooling fans, IoT sensors, or micro-backup systems

For example, a system made of Galaxy TGM40W modules operating at a hot-side temperature of around 100 °C and a cold-side of 40 °C can produce about 400–500 W of power — enough to support monitoring systems or localized ventilation, forming a “heat → power → cooling” cycle.

🤝 Sustainability Starts with Partnership

As Servertech highlights:

“Sustainability is a partnership journey.”

True sustainability goes beyond green energy; it’s about collaboration that improves total system efficiency.

Galaxy collaborates with server manufacturers, cooling-system developers, and energy-management partners to embed TEG modules directly into backplates, liquid-cooling loops, and PDU housings — achieving three key benefits:

1. 🌡 Lower total cooling demand (reduce HVAC energy load)
2. ⚡ Recover and reuse waste heat (power IoT and monitoring systems)
3. 🌍 Improve Power Usage Effectiveness (PUE)

Through such partnerships, data centers evolve from being energy consumers to energy recyclers within the sustainability loop.

🔋 Galaxy’s Sustainable Solutions

• TGM Series Thermoelectric Generator Modules — 40 W / 80 W / 200 W rated options for low- to mid-temperature zones (Bi₂Te₃ / PbTe materials)
• Portable & Hanging TEG Systems — deployable in data centers, steel plants, or semiconductor fabs
• Integrated Energy Monitoring — compatible with existing PDU or DCIM platforms for real-time power tracking

🌏 Conclusion: From Waste Heat to Green Power

The future of sustainable data centers is not just about saving electricity — it’s about creating value from heat.

With Galaxy’s TEG waste heat recovery technology, every degree of heat becomes a new opportunity to generate renewable energy, helping enterprises meet ESG goals while enhancing operational efficiency.

Further Reading:

Source: Servertech Blog – Achieve More Sustainable Data Centers Through Your Technology Partnerships
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