Reducing Operational Cost

Rising energy costs and a premium on floor space mean that every facility is focused on efficiency and usage – and reducing operating expenditure.

By implementing power metering and monitoring systems, electrical parameters and consumption can now be managed up to equipment level, identifying potential power issues, tangible cost savings and resulting in lower billing – delivering straight to the bottom line from day one.


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Measuring PUE (Power Usage Effectiveness) thanks to measurement and monitoring systems


The energy performance of a data centre is characterised by its PUE (Power Use Effectiveness). This indicator is essential to the operator and allows them to qualify their data centre.

PUE, a key performance indicator

The PUE is defined in EN 50600-4-2: Data processing centre facilities and infrastructure, part 4-2: Power Usage Effectiveness.

The PUE represents the ratio between the total energy consumed by the data centre and the energy needed for IT equipment.

To accurately assess the actual performance of a data centre, the consumption monitoring device for the IT servers must be positioned as close as possible to the installed equipment.

The PUE identifies areas for improvement specific to processes, design, and operational efficiency.

A target value will be set for the design of new data centres and used as a target for energy management.

In 2020, the average PUE for all data centres is 1.6. The design of the latest generation of data centres can achieve values of less than 1.4.


Socomec solution

DIRIS Digiware measurement and monitoring system

The DIRIS Digiware measurement system meets the requirements of the EN 50600-4-2 PUE3 category, respecting and ensuring consumption measurements from the main power supply to the servers.

Its precision class means the DIRIS Digiware delivers an accurate measurement of the PUE. The implementation of DIRIS Digiware system in a tap-off or PDU setup for the entire electrical installation gives a detailed mapping of the data centre's consumption distribution and losses. 


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Strengthen the power supply and reduce energy costs thanks to energy storage


The advent of energy storage opens up new opportunities to improve the energy performance of data centres, in particular for cost reduction and system flexibility.

Understand the benefits of energy storage

There are many opportunite in setting up an energy storage system.

The self-consumption of renewable energy production, for example solar or wind power, installed on the site reduces the energy bill.

Limiting power, called peak shaving, during peak periods helps operators to stabilise the grid in return for financial compensation. This service is already operational in countries such as Germany and the United States.

It makes the supply of an emergency power supply available, replacing all or part of the diesel generators, when the loads are supplied in autonomous mode by the UPS.


Socomec solution


Composed of a bidirectional storage converter and batteries, the SUNSYS HES L storage system can be used to offer various services to optimise the energy performance of data centres. These services can be controlled either by the automation integrated into the storage system, or provided by third-party software interfaced with SUNSYS HES L.