Emerging Solutions to the Standby Power Problem

Emerging Solutions to the Standby Power Problem

TitleEmerging Solutions to the Standby Power Problem
Publication TypeConference Proceedings
Year of Publication2018
AuthorsDaniel L Gerber, Alan K Meier, Robert Hosbach, Richard Liou
Conference NameACEEE 2018 Summer Study on Energy Efficiency in Buildings
Conference LocationPacific Grove, CA
Abstract

Despite technical advances in efficiency, devices in standby continue to consume asignificant amount of energy. Finding practical, cost-effective reductions is difficult. While thepower consumption per unit has fallen, the number of units continuously drawing powercontinues to grow.This work investigates a family of technologies that offers a means of greatly reducingstandby consumption in many types of electrical products. The underlying principle involvesproducing a wake-up signal just before service is needed. The wake-up signal activates a footerswitch, which connects the device to the power supply. This work studies and prototypes severalmethods of generating the wake-up signal. The first generates a wake-up signal from harvestedlight energy and is applicable to remote-controlled devices with a line of sight activation, such as set-top boxes, ceiling fans, and motorized curtains. The second method uses an RF-based wake-up signal to activate a wake-up radio and is applicable to any wireless products. No single technology will address all standby power situations; however, these emerging solutions appear to have broad applicability to save standby energy in miscellaneous loads.