Energy Efficient Powering of Equipment in Datacenter with UPS Battery Bank | CompTIA Server+ Exam

Most Energy Efficient Way of Powering Equipment in Datacenter with UPS Battery Bank

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Question

Which of the following is the MOST energy efficient way of powering equipment within a datacenter with a large UPS battery bank?

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A.

The most energy-efficient way of powering equipment within a datacenter with a large UPS battery bank is to use 48V DC power.

When it comes to powering IT equipment, there are several options available. However, the choice of power source can have a significant impact on energy efficiency, which is an essential consideration for datacenters.

48V DC power offers several advantages over other power sources. Firstly, it requires fewer conversions and transfers, which means less energy loss in the conversion process. Additionally, DC power is more efficient at lower voltages, which means that 48V DC power requires less energy to transmit than higher-voltage alternatives.

Moreover, 48V DC power can be distributed more efficiently using smaller gauge copper wire, which is less expensive and takes up less space than larger-gauge wire required for higher-voltage power sources. Additionally, because DC power is compatible with many modern servers and storage systems, it can reduce the need for additional conversion equipment and improve system efficiency.

In contrast, 120V single-phase, 240VAC 3-phase, and 480V 3-phase power sources are less efficient and require more energy to transmit power. They also require more significant gauge wire, which is more expensive and takes up more space, leading to additional costs for the datacenter.

In conclusion, 48V DC power is the most energy-efficient way of powering equipment within a datacenter with a large UPS battery bank. It is more efficient than higher-voltage alternatives, requires less energy to transmit, and can reduce the need for additional conversion equipment.