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UPS (Uninterruptible Power Supply) | Legrand United Kingdom

How does UPS efficiency influence energy and cooling costs in data centers?

UPS efficiency directly impacts both energy consumption and the secondary load on cooling systems. For example, a 1% improvement in UPS efficiency (from 97% to 98%) can result in approximately €9,210 in energy savings over 10 years in a 1 MW deployment, excluding reduced cooling costs. In addition to optimizing energy conversion, modern UPS systems like Legrand’s SiC-powered solutions improve internal distribution efficiency, further enhancing overall savings. This not only reduces direct energy costs but also decreases the heat generated, which lowers the demand on cooling systems and contributes to a more efficient, cost-effective data center operation. 

Note: This calculation only accounts for direct energy consumption savings (i.e., the reduction in energy used by the UPS). Indirect impacts, such as cooling cost reductions and extended equipment life, are not included in this calculation but can provide additional savings.

Energy Savings Formula:

Energy Savings (€)=(Power Difference (kW)×Hours per Year×Energy Cost (€ per kWh))×Number of Years

*Assumed average energy price = €0.10 per kWh