Green Gaming: Energy Efficiency without Performance Compromise
Evan Mills, Norm Bourassa, Leo Rainer, Jimmy Mai, and Arman Shehabi
Lawrence Berkeley National Laboratory
evanmills.lbl.gov
emills@lbl.gov
Nathaniel Mills
GreeningTheBeast.org
nathanielmills50@gmail.com
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Two-thirds of Americans play computer games. Although among the most complex and energy-intensive plug loads, gaming has been largely overlooked in energy R&D and policy. This project characterizes gaming technologies and markets, energy demand and savings scenarios, and policy strategies for improving energy efficiency.
Systems used for computer gaming in California consumed 4.1 TWh/year in 2016 or $700 million in energy bills, with emissions of 1.5 million tons CO2-equivalent allocated 66% to consoles, 31% to desktop PCs, 3% to laptops, and less than 1% to emerging media streaming devices. Among other key findings:
While simultaneously quantifying efficiency and gaming performance is highly problematic, evidence suggests that efficiency can be improved while maintaining or improving user experience. Familiar energy policy strategies can help manage gaming energy demand, although mandatory system-level standards are not promising (component-level measures may be) due to the dominance of user behavior, the unavailability of adequate energy-performance metrics, and that the market and underlying technologies are changing faster than the standard-setting policy process can adapt.