ENERGY STAR Training Center

Computer Specification (Version 4.0)

ENERGY STAR’s new specifications for computers went into effect on July 20, 2007. Only the market’s most energy-efficient computing products will qualify for the ENERGY STAR label.

Since computers are in use many more hours per day than in the past, ENERGY STAR has strengthened its requirements to better save energy among computers and related equipment under today’s usage patterns. By requiring efficiency savings across operating modes, the new computer specification is expected to save consumers and businesses more than $1.8 billion in energy costs over the next 5 years and prevent greenhouse gas emissions equal to the annual emissions of 2.7 million vehicles.

Download a version of the Energy Savings Summary of ENERGY STAR Computer Specification chart to use as an additional training resource.

This version of the chart has larger text and is the same version used in the Computer Sales Presentation.

This version of the chart includes an illustration to compare power use in each computer mode.

ENERGY SAVINGS SUMMARY OF ENERGY STAR® COMPUTER SPECIFICATION

Previous Version 4.0 (effective July 20, 2007)
Only focused on
  • Sleep modes
  • Power management features
Now focuses on
  • “Whole system” energy use, including the computer, its uses, and its components
  • Efficiency savings across multiple operating modes (idle, sleep, and standby)
  • Criteria for many different types of computers — notebooks, tablets, desktops, integrated systems, gaming consoles, desktop-derived servers, and work stations
POWER-SAVING MODES OF ENERGY STAR COMPUTER SPECIFICATION (VERSION 4.0)

Idle Mode

When the operating system has completed loading and only basic, default applications are running.
When computer is on and applications are loaded, but not open and active, minimum power consumption is now required.

Sleep Mode

When the computer enters a low-power state after a period of inactivity, but almost immediately resumes operation when turned back on.
More stringent power consumption levels are required in sleep mode.

Standby Mode

When the computer is shut down by the user but is still connected to a power source (outlet, active power strip).
Introduces stringent power consumption requirements.
ADDITIONAL EFFICIENCY FEATURES OF VERSION 4.0

Power Supply

Requires:
  • Efficient internal power supplies in desktops
  • ENERGY STAR qualified power adapters for laptops

Power Management

Computer ships with power management settings enabled, requiring:
  • Monitor to enter sleep mode within 15 minutes of user inactivity
  • System to enter sleep mode within 30 minutes of user inactivity
  • Information on the benefits of power management