One of the biggest costs in adata centre is power cost. Power is needed to fire the servers and storage systems. And since these systems heat up, power is again required to cool the systems with airconditioning.
In the dot-com era, data centres consumed 1 or 2 MW. Now it's common to find facilities that require 20 MW, and already some of them expect to use ten times as much in the years to come. For countries, data centre power consumption is expected to put an enormous burden on their power grids.
Not surprisingly, an enormous amount of innovation, right from the semiconductor level, is today going into finding solutions to reduce power consumption in computing systems. IBM's India Software Lab in Bangalore has just contributed towards that. It has developed a system to run data centres on solar power, and is making it commercially available, perhaps the first such commercial offering in the world.
"Until now, no one has engineered solar power for efficient use in IT," said Rod Adkins, senior VP of IBM's systems and technology group, who was in Bangalore last week. "We've designed a solar solution to bring a new source of clean, reliable and efficient power to energy-intensive, industrial-scale electronics."
The first implementation is being done at the Bangalore lab itself. A solar power array has been installed, spread over more than 6,000 sft of the lab's rooftop. Kota Murali, chief scientist at IBMIndia, says the installation is capable of providing a 50-kilowatt of electricity for up to 330 days a year, for an average of five hours a day. The advantage of solar power is that it is DC (direct current), unlike grid power that is AC (alternating current).
Tech News - IBM India develops solar-powered data centre | Techgig
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