http://www.datacenterknowledge.com/archives/2008/09/16/googles-take-on-green-data-center-energy/ News and analysis about data centers, cloud computing, managed hosting and disaster recovery Mon, 22 Mar 2010 07:56:22 +0000 http://wordpress.org/?v=abc hourly 1 http://www.datacenterknowledge.com/archives/2008/09/16/googles-take-on-green-data-center-energy/comment-page-1/#comment-786 Microsoft envisage d’utiliser des panneaux solaires - About datacenter Wed, 24 Sep 2008 21:07:39 +0000 http://www.datacenterknowledge.com/?p=2972#comment-786 [...] présentation sur les énergies renouvelables, le gourou de Google Mr. Weihl a annoncé que le solaire est nettement plus cher que toutes les autres sources d’énergie renouvelables de substitution, d’un coût de [...] [...] présentation sur les énergies renouvelables, le gourou de Google Mr. Weihl a annoncé que le solaire est nettement plus cher que toutes les autres sources d’énergie renouvelables de substitution, d’un coût de [...]

]]> http://www.datacenterknowledge.com/archives/2008/09/16/googles-take-on-green-data-center-energy/comment-page-1/#comment-628 Ron Croce, Validus DC Systems Wed, 17 Sep 2008 22:38:10 +0000 http://www.datacenterknowledge.com/?p=2972#comment-628 I think there are some really interesting points here. While there are certainly challenges ahead before renewable energy becomes mainstream (i.e. affordable), the underlying fact is that renewable energy for data centers is an important driver for where the industry is heading. This fact undrescores the current reality of power distribution. All renewable energy produces DC power, but when used to power a data centers, falls victim to up to anywhere from 5 to 7 conversions (AC to DC) and transformations (higher voltage to lower voltage) before powering the servers and other IT equipment. This is exactly the reason why Google is already thinking about DC power distribution. Google's ocean-based concept (http://news.cnet.com/8301-11128_3-10034753-54.html?tag=mncol;title) calls out DC power as one of the contributing technologies that could make this a reality because it allows seamless integration of renewable energy. Compared to legacy AC systems, DC powered IT equipment is up to 46% more efficient, while proving more relaible as well by enabling a denser data center (significantly less hardware than AC powered systems) to further reduce costs. (www.validusdc.com) I think there are some really interesting points here. While there are certainly challenges ahead before renewable energy becomes mainstream (i.e. affordable), the underlying fact is that renewable energy for data centers is an important driver for where the industry is heading. This fact undrescores the current reality of power distribution. All renewable energy produces DC power, but when used to power a data centers, falls victim to up to anywhere from 5 to 7 conversions (AC to DC) and transformations (higher voltage to lower voltage) before powering the servers and other IT equipment. This is exactly the reason why Google is already thinking about DC power distribution. Google’s ocean-based concept (http://news.cnet.com/8301-11128_3-10034753-54.html?tag=mncol;title) calls out DC power as one of the contributing technologies that could make this a reality because it allows seamless integration of renewable energy. Compared to legacy AC systems, DC powered IT equipment is up to 46% more efficient, while proving more relaible as well by enabling a denser data center (significantly less hardware than AC powered systems) to further reduce costs. (www.validusdc.com)

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