Electricity consumption and energy savings potential of video game consoles in the United States
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Total energy consumption of video game consoles has grown rapidly in the past few decades due to rapid increases in market penetration, power consumption of the devices, and increasing usage driven by new capabilities. Unfortunately, studies investigating the energy impacts of these devices have been limited and potential responses, such as ENERGY STAR requirements, have been difficult to define and implement. We estimate that the total electricity consumption of video game consoles in the US was around 11 TWh in 2007 and 16 TWh in 2010 (approximately 1 % of US residential electricity consumption), an increase of almost 50 % in 3 years. However, any estimate of total game console energy consumption is highly uncertain, and we have determined that the key uncertainty is the unknown consumer behavior with regards to powering down the system after use. Even under this uncertainty, we demonstrate that the most effective energy-saving modification is incorporation of a default auto power down feature, which could reduce electricity consumption of game consoles by 75 % (10 TWh reduction of electricity in 2010), saving consumers over $1 billion annually in electricity bills. We conclude that using an auto power down feature for game consoles is at least as effective for reducing energy consumption as implementing a strict set of energy efficiency improvements for the devices, is much easier to implement given the nature of the video game console industry, and could be applied retroactively to currently deployed consoles through firmware updates.
KeywordsVideo game consoles Electricity consumption Auto power down ENERGY STAR Efficiency
This work was supported, in part, by the Environmental Protection Agency through the EPA STAR fellowship, the Gordon Moore Foundation, the Carnegie Mellon Electricity Industry Center (CEIC), and the center for Climate and Energy Decision Making (SES-0949710), through a cooperative agreement between the National Science Foundation and Carnegie Mellon University. We would like to thank Marla Sanchez, H. Scott Matthews, Mike Blackhurst, and Jay Apt for helpful discussions and Katharine Kaplan and Paul Karaffa at EPA ENERGY STAR for their feedback on this work. No funding agencies had any role in the collection, analysis or interpretation of data, in the writing of the report, or in the decision to submit the paper for publication.
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