Energy Issues Affecting Data Centers

It is said that there currently are 200,000,000,000 internet of things (IoT) objects in the world today. Probably in a short time, we will think this number is quaint. Or perhaps technology will advance so much that more data can be stored on fewer objects and this number may drop. The amount of computing done in data centers more than quintupled between 2010 and 2018. Most of these devices need to perform computing and storage activities, meaning the need for IT data centers, whether relatively small ones in a company’s office or huge building-size data centers.
While in recent years, we have become dependent on the “cloud”, things are changing. Of course, data is not stored in a literal cloud. The “cloud” is one of a small number of huge data centers that stores yours and other’s data. A recent trend is edge data centers, smaller buildings and structures where computing and storage takes place located usually within only a few miles from where the data is generated.

According to https://energyinnovation.org/2020/03/17/how-much-energy-do-data-centers-really-use/, in 2014, US IT data center electricity usage was split nearly equally between server demand and the need for electricity to supply electricity to such centers and for cooling. As discussed above, physical data centers will only grow substantially in our complex times; thus the need for more electricity.

Electricity Usage

According to several sources, data centers use 1% of all of the world’s electricity consumption. This appears small but given the absence of data centers in many (poorer) parts of the world, this is significant. However, the rate of growth of electricity usage is slowing down due to energy efficiency. The good news is that servers and related equipment are being designed to use less electricity to compute or store data. And such equipment is available if one is replacing data servers or expanding.

Another problem is cooling. Many data centers have their own AC systems with thermostats set for low temperatures to prevent over-heating. In some cases, thermostats are set to keep temperatures of such rooms below 55⁰F. ASHRAE recommends that temperatures of rooms containing servers not be lower than 65°F. And, in fact, ENERGY STAR, the joint EPA/DOE program that evaluates energy usage of common equipment, has recommended servers that can be useful up until 95⁰F or greater. Certainly, one should be careful not to overheat your equipment. But one should look deeper into what that true temperature is. Another idea is not to necessarily cool a server room with an AC, but to use, instead, fans, which use less power, to force hot air away from servers and a stack of servers. Your IT professional should be able to recommend the right conditions for the long-term health of your IT Center.

Reliability

Many data centers feature back-up power systems in case their primary source of electricity is interrupted. Edge data centers, in particular, sometimes placed in urban and suburban areas, may be particularly vulnerable to sudden losses of power. An emergency engine generator to ensure that your data center continues to operate properly is good for the company, but does lead to more stringent emissions and noise requirements, such as particulate and other controls. Make sure the system you choose for backup power is right for your needs.

CCES has the experts to assess the energy usage of your IT or data centers, on or off- your physical location and recommend ways to save significant energy costs. Contact us today at 914-584-6720 or at karell@CCESworld.com.