【Mr. Green】California begins developing a roadmap for energy saving in low-power mode for electronic devices

Low power mode is any mode other than the load mode in which the device is performing its primary function. Roadmaps are a new approach to energy conservation compared to traditional rulemaking. Roadmap specifications are voluntary and are not subject to federal law preemption. As a result, they can be developed more quickly and flexibly. Although not regulatory, roadmaps have the potential to become mandatory standards if milestones are not met or regression occurs. Low power mode power consumption limits take into account energy savings, cost effectiveness, and technical feasibility.

Currently, the process is in the data collection phase. Essentially, the concept is to measure the amount of power consumed by the device when it is idle, with the energy consumption levels of secondary functions measured through regular test procedures. The next step is to perform data collection on actual products. Once this data is evaluated, the scope can be modified as needed and an assessment can be made as to whether the goals defined by the specification and phase tasks have been achieved. If the goals have not been achieved, the scope will be readjusted and may be transformed into a formal standard.

The initial coverage of the low power roadmap includes all electrical and electronic products, and the coverage is intentionally broad to achieve greater energy savings. However, products that are already covered by low power mode standards in state or federal regulations, or are already in other CEC roadmaps, are excluded from coverage. For example, computers, monitors, electronic displays, furnace fans, boilers, and microwave ovens are all excluded products. The horizontal approach groups products with similar secondary functions (e.g., display, networking capabilities, sensors, etc.) and then establishes a baseline energy use.

On June 20, 2018 , CEC published a discussion document on low power mode test procedures. In this webinar, feedback was received and summarized from stakeholders on many topics, such as existing test procedures, product offerings, test status, networking traffic content, configuration requirements, sensors, wired and wireless charging, DC power supply, and shutdown mode definitions. For detailed feedback, please refer to the webinar transcript posted on the CEC website.

Subsequent action steps include developing a data collection procedure, collecting raw data based on that procedure, and publishing an analysis of coverage and potential opportunities.