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According to a recent study,McKinsey & Company (2008). the carbon dioxide (CO2) emissions of the U.S. information technology (IT) industry already exceed the emissions of entire nations, such as Argentina, the Netherlands, and Malaysia. At the current pace, emissions are expected to quadruple and the IT industry is expected to exceed the airline industry in emissions by 2020. The research shows that the U.S. IT industry is increasing its energy usage at a rate of 10%–20% annually. The study estimates that at this rising rate of energy usage, the United States will need to build 30 new coal-fired or nuclear power plants by 2015 solely to support the nation’s IT usage.
The Smart 2020 reportGlobal eSustainability Initiative (2008). estimates that IT has the potential to reduce worldwide global emissions by 15% by 2020. According to this report, the greatest global opportunities for IT to help reduce emissions are in the areas of smart motor systems in China’s manufacturing industry, smart logistics in Europe’s transport and storage industries, smart building technologies in North America, and smart grid technologies in India.
In order to address growing concerns over the environmental impact of the IT industry and to take advantage of opportunities, the proactive and sustainability-focused business will develop green IT strategies. Green IT strategies are not only proactive and environmentally friendly but can also ultimately reduce the company’s energy consumption and costs.
There are a number of suggestions for green IT strategies. For example, the same McKinsey & CompanyMcKinsey & Company (2008). study suggests that most companies could double energy efficiency of data centers by 2012. The researchers propose automobile CAFE-type industry standards (corporate average fuel economy [CAFE] standards require an automaker to meet minimum average fuel efficiency across its entire fleet of manufactured vehicles). These CAFE-type industry standards would be used for measuring efficiency in conjunction with the following suggestions: creating an energy-efficiency dashboard, sealing cable cutoffs, turning off and removing excess hardware, increasing temperatures, virtualization, and upgrading equipment.
Greening the data center is often the starting point of green IT strategies. The first step in your green IT strategy is to know current energy usage, where energy is used and by what specific equipment, what usage is efficient, and what usage is wasteful. There are a number of IT-enabled energy-reduction systems (such as EnviroCube or EnerSure monitoring devices or Verdiem software tools), smart metering, and other technologies that can ultimately reduce cooling costs and electricity consumption. As if that is not incentive enough, the U.S. Environmental Protection Agency (EPA) is currently developing an ENERGY STAR rating for data center infrastructure, and the European Commission has developed a Code of Conduct for Green Data Centers. We will now look at some specific green IT strategies designed to increase efficiency and decrease energy consumption.
Storage resource management (SRM)A method of increasing storage utilization and decreasing power needs to increase efficiency and decrease energy consumption. helps identify underutilized capacity, removes or reassigns unused storage, identifies old or noncritical data that could be moved to less expensive storage, removes inappropriate data, and helps predict future capacity requirements. SRM can increase storage utilization and decrease power needs. Companies that have used SRM have experienced utilization improvements of 30%–40%.Harrison (2008).
Storage virtualizationA method of increasing storage utilization by integrating several storage networks into one virtual storage site. allows the work of several storage networks and devices to be integrated to appear as one virtual storage site. Storage virtualization can improve storage utilization by allowing storage to be assigned where it is needed.
Another tool is continuous data protectionA method of increasing storage utilization by offering continuous or real-time byte-level backup of changes to documents., which offers continuous or real-time byte-level backup of changes to documents. This often requires less storage space than traditional file-level backups.
Yet another option for reducing storage costs is storage tieringA method of increasing storage utilization and decreasing power consumption by assigning categories of data to specific types of storage media, which can be automatically managed through software programs.. Tiered storage assigns categories of data to specific types of storage media. The categories are company-defined based on levels of security and protection, usage, performance, or other considerations. This process can be automatically managed through software programs. The benefit of tiered storage is that it allows companies to increase utilization rates and decrease power consumption and cooling costs.
One green IT approach being used is server consolidationA means of reducing energy usage and increasing energy efficiency by reducing the number of servers used by running multiple applications on each server., which reduces the number of servers used by running multiple applications on each server. Another approach to reducing energy usage and increasing energy efficiency is server virtualizationA means of reducing energy usage and increasing energy efficiency by allowing virtual machines to run on one piece of hardware, at both the server and the PC level.. Similar to storage virtualization discussed earlier, server virtualization allows virtual machines to run on one piece of hardware, at both the server and PC level.
Cloud computingA means of accessing computer technology via the Internet without needing company investment in technology. is an option that allows access to computer technology via the Internet without your company purchasing or managing the technology. Cloud computing can be used with data centers, networks, configuration, software, hardware, infrastructure, platforms, services, and storage. Cloud computing can ultimately reduce costs while increasing utilization and efficiency. The FTC and computing professionals are beginning to address security issues in this new arena of cloud computing.Condon (2009).
Green PCs are designed to minimize the use of electricity and to meet the Environmental Protection Agency’s ENERGY STAR standards (new ENERGY STAR standards for computers were updated in 2007). One example is thin clients, diskless machines that consume a fraction of the power of standard desktop machines. The average desktop computer uses 4 to 8 times more energy than a thin client.Naegel (2009). Another option to consider is a laptop rather than a desktop. Laptops consume approximately 5 times less energy than desktops.Chua (n.d.). Lastly, the use of an ENERGY STAR–rated LCD monitor will reduce energy consumption.
Ideally, desktops should use 4 watts of energy or less in sleep mode and 50 watts or less when idle. For laptops, the ideal is 2 watts or less in sleep mode and 14 to 22 watts or less in idle mode.Chua (n.d.). However, the EPA estimates that fewer than 10% of computers are set to use the sleep or hibernation mode.Chua (n.d.). This power-saving feature can easily be set up on your computer through the Control Panel’s power options, although turning off your computer at the end of every workday is the best choice. Employees could also use a desktop device, such as EcoButton, to put the computer into sleep mode. Smart power strips can also conserve energy by turning off items after a period of inactivity. Smart strips are useful for printers, monitors, computers, and other items that can be powered down at the end of each day.
In addition to energy efficiency, green PCs are designed to contain fewer toxic materials (such as lead) in production and shipping and to contain more components that are made from recycled parts and that can again be recycled at the end of the machine’s usefulness. The EPA’s Electronic Product Environmental Assessment Tool allows you to compare computer models before making a purchase. See Note 7.8 "Greener Printing From Your Computer" for tips on how to be more environmentally friendly when printing from your desktop.
Before you print that next document, here are some ways you can achieve greener printing from your computer.
By utilizing a combination of these suggestions, students at the University of Arkansas at Little Rock found that the College of Business could save 39% to 43% per year in paper and ink costs.Barakovic et al., 2009. Above all, as your company upgrades computing equipment, seek out recycling centers or take-back programs for monitors, desktops, laptops, and other electronic items.
Many electronic items (monitors, computers, keyboards, televisions, external hardware devices, calculators, cell phones, and virtually anything that requires power for operation) can be donated to charitable organizations or repaired for continued use. For those electronics that cannot be repaired, electronics recyclingThe donation of unwanted electronics to charities or the recycling of nonworking electronics to reduce the amount of electronics waste in landfills. Commonly referred to as e-recycling. (or e-cycling) is an option. The EPARetrieved March 23, 2009, from http://www.epa.gov/epawaste/conserve/materials/ecycling/donate.htm and Earth911 Web sites are the most comprehensive sources for finding where, what, and how to recycle in your local area. By donating unwanted electronics to charities or by recycling nonworking electronics, the sustainable business is doing its part to reduce electronics waste and divert it from the landfill.