Liang Downey, MBA, MEng

Detroit Metropolitan Area Contact Info
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Incisive professional with proven ability to lead strategic initiatives. Vibrant…

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  • Microsoft

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  • Renewable Energy Options for Data Centers

    PowerPulse.Net

    We have finally reached a point where energy costs have overtaken real estate costs as the primary data center expense. Server density has increased tenfold over the past decade, and the average server's power consumption has quadrupled. A typical data center can easily consume anywhere between 1megawatt (MW) and 20MW of electricity. And, for every dollar an enterprise spends on computing hardware, an additional 50 cents is spent on powering and cooling this hardware. At these levels it is not…

    We have finally reached a point where energy costs have overtaken real estate costs as the primary data center expense. Server density has increased tenfold over the past decade, and the average server's power consumption has quadrupled. A typical data center can easily consume anywhere between 1megawatt (MW) and 20MW of electricity. And, for every dollar an enterprise spends on computing hardware, an additional 50 cents is spent on powering and cooling this hardware. At these levels it is not just the cost of energy, but the stability of that cost that proves worriesome for data center managers everywhere.

    How can a data center handle such cost uncertainties in this environment of increasing electricity demand? Improving energy efficiency is the first step, but there are other strategies by which a data center can control costs long term.

    One way facilities can control electricity costs is by generating their own on-site supplemental power. This allows a data center to augment (or eliminate altogether) the amount of electricity that it takes from the existing power grid. This concept of augmenting the power from the grid — referred to as a distributed generation (DG) options — represents a major shift in the energy procurement paradigm.

    The most efficient DG options are a variety of modular plug-and-play power generating units that improve the quality and/or reliability of a facilities electricity supply. This increases the flexibility of a company’s ability to grow (or shrink) operations at a particular site, by allowing them to add or remove power modules as needed. The use of modular units lowers the investment cost risk associated with the more traditional static custom systems.

    Other authors
    • Rosemarie Szostak Ph.D. Nerac Inc.
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