Microsoft Study Finds Cloud Computing Is Good for the Environment

A Microsoft-commissioned study bears out what environmentally-conscious companies have hoped for all along: cloud computing has the potential to reduce energy consumption and carbon emissions by 30 percent or more.

Large data centres, like those run by Microsoft itself and other tech giants, such as Amazon and Google, benefit from economies of scale and operational efficiencies, according to the study.

Smaller Businesses Reap Greater Benefits

Small businesses, of about 100 users, moving business applications away from on-site servers into the cloud can see net energy and carbon savings of more than 90 percent, the researchers wrote. For mid-sized organisations, of about 1,000 users, the savings were between 60 and 90 percent.

“The cloud has the ability to deliver business value for customers in an age where corporate responsibility is critical to business success,” said Rob Bernard, chief environmental strategist at Microsoft.

Larger operations are generally more efficient at managing server utilisation and capacity, the researchers said, noting that they can increase the server capacity for an application during peak periods and decrease it when the server is not in use. Large public cloud environments are better at dynamic provisioning and can serve “millions of users” across many companies simultaneously on one massive shared infrastructure, according to the report.

The researchers concluded that while independent organisations can incorporate dynamic provisioning, server utilisation and other strategies into their own data centre, the benefits will not be as great as it would be for a large cloud provider.

The study focused on three commonly used Microsoft business applications: Exchange Server 2007 for email, SharePoint Server 2007 for content sharing, and Dynamics CRM for customer relationship management. Each on-premise product was compared with cloud-based equivalents: Exchange Online, SharePoint Online, and Dynamics CRM Online.

Researchers calculated the carbon footprint of server, networking and storage infrastructure for three different deployment sizes: 100, 1,000, and 10,000 users. The study relied on actual data provided by Microsoft to estimate cloud-based energy use and carbon footprint.

Choosing the cloud option can enable a significant reduction in carbon emissions and, the smaller the organisation, the larger the benefits, said the study. In fact, the research team calculated that 32 percent of emissions could be saved by moving 50,000 email users in Europe and North America off individual Exchange servers and onto Microsoft Exchange Online.

Companies are generally considering the move to cloud computing to reduce costs and increase business flexibility. Along with hoped for reductions in the electric bill, companies are interested in minimising the physical infrastructure, such as servers and switches. Companies can also outsource some of the performance and management tasks.

“The benefits of cloud computing are clear: increased productivity, reduced costs, and lower management overhead of products have become key considerations for organisations evaluating Microsoft’s cloud services,” said Bernard.

The study focused on select Microsoft applications but the study authors felt it was “likely” that “similar advantages” would be seen for other business applications and cloud providers.

Accenture and WSP Environment and Energy conducted the study, commissioned by Microsoft.

Fahmida Y Rashid eWEEK USA 2014. Ziff Davis Enterprise Inc. All Rights Reserved.

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