Just a few days back, Google made headlines for its Taiwan data center in which the company has used thermal storage. The other side of this story is the question pertaining to why Google has not done this earlier. Actually, this technique of cooling things has been around in use from the industrial age when huge blocks of ice would be stored under straw and then distributed to locations which needed “cold storage”.
Google uses pretty much the same fundamental principle. Instead of ice of course, the data center will store cooled liquid in insulated tanks in the night and pipe this through the facility during the day. Some buildings even create ice at night and use the same during the day. Google is looking at reducing the energy usage at its Taiwanese data center by almost 50%.
The biggest reason for using such cooling is the immense humidity that Taiwan has. Free air cooling this is not always available. It is not just environmental reasons that have driven Google to innovate thus. It is also the fact that power bills are rising significantly.
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