Sharp increases in energy prices have forced many IT pros to look at how inefficient existing cooling practices are. Traditionally only half the total data center energy is used at the equipment with typically about 30-45% or even over 50% of the total data center energy is consumed by the cooling infrastructure. Most of this is consumed by the site chiller plant, used to provide chilled water to the data center, and by computer room air conditioners (CRAC) and air handlers (CRAH), used to cool the computer room. With average PUE of 1.89 for many datacentres over 50% of energy consumption and carbon footprint is not caused by computing but by powering the necessary cooling systems to keep the processors from overheating.
Datacenters use currently 3% of the world’s energy (around 420 terawatts) which is around 45% more than the entire United Kingdom energy spend. And this consumption will double every four years. Researchers predicts that by 2025, data centres will amount to largest share of global electricity production at 33% This is why EU Commission issued EU Code of Conduct on Data Centre Energy Efficiency along with best practice guidelines.
DCX systems save over 50 % of typical data center’s energy consumption with hot liquid cooling and 30% save can be expected in small scale consumer systems. For most installations we observe an overall reduction in average data center power consumption by up to 45%. The savings comes from a combination of HVAC elimination, reduced infrastructure footprint, and reduced fan power consumption. This cuts lot’s of operational cost associated with power cost. Increase in computing power of liquid cooled processors and gpu’s effects also in 15-20% more performance. For specific application it can reach with additional fine tuning and overclocking even 30% more compared to air cooled server rooms. This means we can do the same having 15-20% less servers.
Moreover, high-grade heat at the output can be used for such needs as heating building spaces. In our liquid cooling installations, with 50-60*C hot fluid output we reuse from 64% to over 80% of usually wasted heat. This is why liquid cooling sites demonstrate the extreme energy efficiency and can deliver heat to local community or office space.