alphadogg (971356) writes "The iPad and other tablets will be rated based on the Energy Star specification in the future.
The specification will be part of the Energy Star version 6.1, according to documents posted on the U.S. Energy Star website. https://www.energystar.gov/products/specs/node/143 But a date for ratings on tablets has not yet been established yet by the IPA and Dept. of Energy."
Link to Original Source