Data centers are the backbone of the digital world and consume vast amounts of energy. Pressure is increasing on operators in their day-to-day work. On the one hand they must maintain operational reliability, while on the other hand balance the increasingly burdensome requirements to reduce costs and maintain audit readiness and energy efficiency (PUE – Power Usage Effectiveness).

That is exactly where sensor technology shifts from a "monitoring add-on" to a real lever. Alongside the IT load, HVAC and climate control account for up to 40% of a data center's total energy consumption, making them one of the biggest consumers on site. Even the smallest increases in server inlet temperature can have a noticeable impact on energy demand. An increase in inlet temperature of just 0.5 °C can save around 4–5% of energy consumption. To properly take advantage of this, highly accurate and longtime stable measurements must be captured exactly where they are most relevant for control and verification.

Discover how E+E Elektronik enables energy optimisation with its sensor and service concept – without compromising on safety and stability!

Your Advantages

• PUE efficiency through precision and compactness
• Modular design: No disruption to operations during service and maintenance
• Audit-ready: Verifiable measurement quality thanks to in-house calibration expertise
• Innovative know-how for long-term stability without compromise

Data Center Environmental Monitoring

Reliable Data Center Environmental Monitoring: Stable PUE Optimisation with E+E Sensors

Data centres are the backbone of the digital world. At the same time, they are major energy consumers. Operators face a constant balancing act between maximum operational reliability and availability and rising requirements for cost, audit readiness and energy efficiency (PUE – Power Usage Effectiveness). This is where E+E Elektronik comes in: with a sensor and service concept for data center environmental monitoring that enables energy optimisation – without compromising on safety and stability.

• Measurement accuracy that saves real money – up to 9% lower cooling energy demand per +1 °C higher server supply air temperature.
• Long-term stability – a reliable data basis over many years instead of gradual drift.
• Compact, practical designs – easier placement at critical measurement points and higher measurement-point density.
• Easy integration – compatible with typical BMS/BAS architectures and standardised interfaces.

 Precise. Compact. PUE-effective

In a data centre, measurement accuracy is not a technical detail – it is a direct lever for efficiency. Anyone who wants to intentionally raise the server inlet temperature or control air volumes cleanly can only do so if temperature, air velocity, humidity and pressure are captured reliably and reproducibly. This results in more stable control, reduces unnecessary safety margins, lowers cooling energy demand and creates the foundation to implement efficiency measures safely without endangering uptime. E+E Elektronik, for example, provides highly accurate temperature sensors with an accuracy of ±0.1 °C. 

Based on the rule of thumb that the cooling energy demand drops by around 9% per +1 °C higher server supply air temperature, increasing the temperature by just 0.4 °C and assuming an electricity price of €0.15/kWh saves around €200,000 per year (with 8,760 operating hours, 10 MW IT load and a PUE of 1.40). The compact design also enables a higher measurement-point density and thus better overall control quality across the system.