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Myth #3: I have to buy new, energy efficient hardware to reduce energy consumption.
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Energy Efficiency
Energy Conservation
vs.
Energy efficient equipment
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Energy efficient architecture
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•Before we define PC power management, it’s worthwhile pointing out the difference between energy efficiency and energy conservation.
•Energy efficiency oftentimes comes at a price. You can source more energy efficient equipment – such as laptops versus desktops or LCD monitors versus CRT monitors. For example, when assessing the energy consumption of desktops vs. laptops, Dell found that their average desktop consumes 89 watts per hour, compared to 15-25 watts per hour for laptops. For monitors, Energy Star estimates that LCD (Liquid Crystal Display) monitors use on average 50%-70% less energy in on-mode than conventional CRT (Cathode Ray Tube) monitors.
•Likewise, you can also transition to a more energy efficient form of computing architecture – such as thin clients. Vendors have been touting the energy saving benefits of thin clients for sometime – and a recent Forrester estimate found that thins clients consume 25% less energy than their “thicker” equivalents after adjusting for increased data center infrastructure requirements [HP Compaq t5725 Thin Client mounted on HP LP2065 Flat Panel Monitor stand.]
•But when we talk about PC power management, we’re talking about energy conservation – not energy efficiency. This means reducing energy consumption by powering down machines when not in use versus buying into more energy efficient computing equipment or architectures.
•And in an environment when capital investment dollars are harder to come by, this is an important distinction.