# Presentation: 837779

## Highlights of Proposed Specification

- Noah Horowitz
- Sr. Scientist
- Natural Resources Defense Council (NRDC)

## Session Outline

- Terminology Gut Check.
- Basis for New Specification.
- Key Elements of Proposed Specification.

## Terminology

- ON:		“active”, “full power”
- SLEEP:	After x minutes of inactivity, monitor goes to lower power usage mode. “low power”
- OFF:	“Standby”
- Remember:  _ON, SLEEP, AND OFF_

## Current ENERGY STAR Specification

- Sets minimum wattage levels in low-power or “sleep” mode.
- First Sleep Mode:   15 watts
- Second or “Deep Sleep” Mode  8 watts

## Why Revise the Current Specification?

- Virtually all monitors meet current ENERGY STAR specification.
- Large percentage of monitors are not sleep enabled (i.e., we are not getting the energy savings we could be).
- Recent NRDC research shows energy use in “on” mode is 80 –90% of total kWh/yr.
- For “on” and “off” modes, wide range of performance between similar-sized models.
- Broad interest in limiting standby power use.

## Goals for Revised Specification

- Incorporate all 3 operating modes:
- On (active)
- Sleep (inactive)
- Off (standby)
- Performance-based specification.
- One specification for all monitors, not one for CRTs, one for LCDs, etc.
- Equal or better performance compared to non-ENERGY STAR labeled models.

## The Core Requirements

- Maximum allowable power consumption levels for each mode:  On, Sleep, Off
- Consensus test method for measuring active power usage.
- Minimum consumer acceptance criteria (brightness, warranty, etc.)
- Product and package labeling.

## On Mode:  Active Power Use

- Sets maximum allowable active power (W)
-     	Power as a function of mega pixels:
- Y = 30 + 20X
- Testing to be done via test method in Section 5 (save questions till later on: what settings?)
- Example:  monitor has resolution of:
- 	*1280 x 1024 = 1,310,720 or 1.31 mega pixels *
*Y = 30 + 20 (1.31) = 56 W*

## On Mode (cont.)

- Technology neutral, agnostic to monitor type (LCD or CRT), size (15”, 17”, etc.).
- If monitor yields more information, allow a little more power consumption.

## Sleep Mode

- Just one sleep mode level.
- Maximum allowable power: 4 W
- If multiple sleep modes, all must meet 4W requirement.

## Sleep Mode Advisory Language

- For consideration in updated ENERGY STAR computer specification:
- 	Maximum default time:	15 minutes
- 	Maximum recovery time:  5 seconds
- Goal – increase likelihood that users actually use and are not annoyed by  energy management features.

## Off Mode

- Synonymous with standby.
- Power consumed when device is plugged in, but switched off:   2 W.
- Working to harmonize with Executive Order for Standby Power Consumption
-    (i.e. make ENERGY STAR off reqt and FEMP standby spec identical)

## Consumer Acceptance Reqts. 

- Must be:  bright enough, easy-to-read, reliable.
- _Brightness_:  minimum luminance of 100 nits (candelas/m2).
- _Contrast_:  minimum contrast ratio of 200:1.
- _Defective Pixels_:   5 sub-pixel faults per million sub-pixels.
- _Warranty_:  at least 2 years.
- _User Interface_: UI Standard recommended

## Labeling Requirements

- ENERGY STAR logo must be displayed on:
- top/front of product,
- product package,
- product literature.

## Save Those “Other” Questions

- Later sessions to cover:
- Why base the on mode spec on pixels and not per inch of screen, etc.?
- Test methods:  “How do we measure it?”  What settings do we use?
- How/why did you pick the levels you did?