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ENERGY STAR

ENERGY STAR
Countries:
 United States
Type: Voluntary Label
Links: ENERGY STAR Home Page

ENERGY STAR Product Specs
ENERGY STAR Revisions to Existing Specification
ENERGY STAR New Specifications in Development
ENERGY STAR Historical Specifications
ENERGY STAR Enhanced Testing and Verification Procedure

Sponsored by the Department of Energy and the Environmental Protection Agency (EPA). One of the most visible certifications world-wide with energy efficiency specifications for consumer electronics, office equipment, appliances and external power supplies. ENERGY STAR is working closely with countries around the world to harmonize efficiency standards, including close collaboration with China's CECP. See also: International Energy Star for more details.

Other ENERGY STAR Information

PRODUCT Max Standby / Min Efficiency
Battery Charger Systems View current specifications.
Computers

View current specification .

Computer (Enterprise) Servers

View current specification .

Copiers See Imaging Equipment

Cordless Phones
(includes Answering Machines)

Cordless telephone ≤ 2 W
Combination Units: ≤ 2.5 W
Additional Handsets: ≤1 W

View current specification.

Dishwashers Standby included in overall energy calculation. See eligibility criteria.
DVD players 1 W
View current specifications
View specification revision in development
External Power Supplies Table 1: Energy-efficiency Criteria for Active Mode: Standard Models

NOTE: The ENERGY STAR specification for External Power Supplies (EPS) and End-Use Products Using External Power Supplies (EUP) were sunset on December 31, 2010. For more information, see:
http://www.energystar.gov/index.cfm?fuseaction=products_for_partners.showEPS

Nameplate Output Power (Pno) Minimum Average Efficiency in Active Mode
(expressed as a decimal)
0 to ≤ 1 watt ≥ 0.480 * Pno+ 0.140
> 1 watt to ≤ 49 watts ≥ [0.0626 * Ln (Pno)] + 0.622
> 49 watts ≥ 0.870

 

Table 2: Energy-efficiency Criteria for Active Mode: Low Voltage* Models
Nameplate Output Power (Pno) Minimum Average Efficiency in Active Mode
(expressed as a decimal)
0 to ≤ 1 watt ≥ 0.497 * Pno+ 0.067
> 1 watt to ≤ 49 watts ≥ [0.0750 * Ln (Pno)] + 0.561
> 49 watts ≥ 0.860

* A low voltage model is an EPS with a nameplate output voltage of < 6 volts and a nameplate output current ≥ 550 milliamps

Table 3: Energy Consumption Criteria for No-load
Nameplate Output Power (Pno) Maximum Power for No-load
AC-AC EPS AC-DC EPS
0 to < 50 watts ≤ 0.5 watts ≤ 0.3 watts
≥ 50 to ≤ 250 watts ≤ 0.5 watts ≤ 0.5 watts

View Current Specifications
Download Test Method
ENERGY STAR EPS Version 2.0 Summary Page

Fax Machines See Imaging Equipment
Home Audio 1 W
View current specifications
View specification revision in development
Imaging Equipment (printers, scanners, copiers, FAX machines, etc.)

View current specification
View specification in development
LED Lighting Integral LED Lamp Specification
Program Requirements for Solid-State Lighting Lumenaires - Version 1
Monitors/Displays
  On-mode power consumption Sleep mode Off mode
Effective January 1, 2006 Y is expressed in watts and rounded up to the nearest whole number and X is the number of megapixels in decimal form.
If X < 1 megapixel, then Y = 23; if X > 1 megapixel, then Y = 28X. 		≤ 2 watts ≤ 1 watt
Version 5.0, tier 1 Effective October 30, 2009
Diagonal Screen Size < 30 inches Screen Resolution ≤ 1.1 MP PO = 6*(MP) + 0.05*(A) + 3
Diagonal Screen Size < 30 inches Screen Resolution > 1.1 MP PO = 9*(MP) + 0.05*(A) + 3
MP = Display resolution in megapixels
A = Viewable screen area in square inches 		≤ 2 watts ≤ 1 watt
Version 5.0, tier 1 Effective January 30, 2010
Diagonal Screen Size 30 - 60 inches (All Screen Resolutions) PO = 0.27*(A) + 8
≤ 2 watts ≤ 1 watt
Version 5.0, tier 2 Effective October 30, 2011 TBD ≤ 1 watts ≤ 1 watt

View details.
See Imaging Equipment
Printers See Imaging Equipment
Scanners See Imaging Equipment
Set Top Boxes

Simple Set-top Boxes (DTA)
≤8 W active on, ≤2 W standby

View current specification.

Complex Set-top Boxes

View current specification.

Future specifications:
   Final Version 3.0 Specification
   Final Version 4.0 Specification
Televisions Table 1: On Mode Power Consumption Requirements for TV Products
Screen Area Version 4.1: Effective May 1, 2010
Maximum On Mode Power Consumption in Watts (A expressed in inches2) Maximum On Mode Power Consumption in Watts (A expressed in cm2)
A < 275 square inches (1774 square centimeters) Pmax = 0.190 * A + 5 Pmax = 0.029 * A + 5
A >= 275 square inches (1774 square centimeters) Pmax = 0.120 * A + 25 Pmax = 0.019 * A + 25
Screen Area Version 5.1: Effective May 1, 2012
Maximum On Mode Power Consumption (A expressed in inches2) Maximum On Mode Power Consumption (A expressed in cm2)
A < 275 square inches (1774 square centimeters) Pmax = 0.130 * A + 5 Pmax = 0.020 * A + 5
275 <= A <= 1068 square inches (6890 square centimeters) Pmax = 0.084 * A + 18 Pmax = 0.013 * A + 18
A > 1068 square inches (6890 square centimeters) Pmax = 108 Pmax = 108
Notes:
Pmax = maximum allowable On Mode power consumption
A = viewable screen area of the product, calculated by multiplying the viewable image width by the viewable image height

Table 2: Download Acquisition Mode (DAM) Requirements
Specification Version Maximum Allowable Energy in DAM (kilowatt-hours/day)
Version 4.1: Effective May 1, 2010 0.08
Version 5.1: Effective May 1, 2012 0.02

View current specification.

Source: Energy Star. Please check source for latest information.