# Presentation: 339594

## Improved and Standard User Interface forPower ManagementBruce NordmanLawrence Berkeley National LaboratoryBNordman@LBL.govhttp://eetd.LBL.gov/ControlsMay, 2000sponsor: California Energy Commission

## Overview

- Energy Implications
- Facts and Assumptions
- Non-Office Eqt. Controls
- Office Equipment Controls
- Project Elements

## Office Equipment Energy UseAnnual Electricity (TWh/year)

**No Power Management**
**Now**** **(ENERGY STAR)
**Potential**(100% Enabling)

## Energy Savings

- 				  _TWh/year   $billion/year_
**Existing****	**		27.1		2.2
**Potential** 		16.7		1.3
**Current Power Mgmt. Enabling Rates:**
- 	PCs: 	     25%  	Monitors: 	60%
- 	Printers:  80%	Copiers: 	70%

## Facts

- PC power management enabling rates are low; other devices could be higher
- PM Controls and Indicators are inconsistent and often confusing or ambiguous
- Potential PC PM savings are increasing

## Assumptions

- More understanding of existence and operation of power management will lead to it being used better and more often.
- Improved and Standard User Interface elements will improve understanding.
- Existence of Standard and advocates for it will lead to adoption of it for new products.

## Our Project

*Goal:*   Save extra energy by getting more use out of already existing power management capability in office equipment.
*Means:*   Over a few years achieve a broad similarity of user experience of power management across all office equipment. Do this via a voluntary standard.

## Standard Controls

## Cars: Gearshifts

## Phones: Number Layout

## Traffic Signs, Indicators

## Standard International Symbols for Electronics

## Non-standard Controls: Blenders

## Non-Standard ControlsCell Phones

## Office Equipment Power Management Terms

- On,  Ready,  Active,  Idle,  _Standby_*,  Doze,
- Suspend,  Sleep,  Deep Sleep,  Low-Power,
- Energy-Saver,  Power-Saver,  Hibernate,
- Energy Star Mode,  Weekly Timer,  Delay
- Timer,  Idle Timer,  Activity,  Inactivity,
- Auto-off,  Soft-off,  Off.

## Office Equipment: What Works

## Suspend mode is known as standby mode under the Microsoft Windows 98 operating system.  For systems with ACPI compliance, suspend mode is known as sleep mode” (Dell)
stand-by mode” — Fully ready to copy but not copying. (ASTM Copier Test Procedure)
“Stand-By — ... an optional operating state of minimal power reduction ...” (VESA Standard)
“Standby power — The lowest power mode in which the appliance is plugged in ...” (LBNL-Leaking/Standby Electricity)
“Standby is ... the lowest power state where the system is responsive to interrupts ...”  (PowerPC Reference Platform)
"Suspend is currently ignored under Windows 95/98 and Windows 2000 because the terminology is ill-defined. “ (Microsoft) 
There is no distinction between Suspend and Standby in OnNow as there was previously under APM definitions" (Microsoft)

*stand-by** mode*” — Fully ready to copy but not copying. (ASTM Copier Test Procedure)
- “Stand-By — ... an optional operating state of minimal power reduction ...” (VESA Standard)
- “Standby power — The lowest power mode in which the appliance is plugged in ...” (LBNL-Leaking/Standby Electricity)
- “Standby is ... the lowest power state where the system is responsive to interrupts ...”  (PowerPC Reference Platform)
- "Suspend is currently ignored under Windows 95/98 and Windows 2000 because the terminology is ill-defined. “ (Microsoft)
- There is no distinction between Suspend and Standby in OnNow as there was previously under APM definitions" (Microsoft)

- Office Equipment:The “Standby” Problem

## What Doesn’t Work:

- PC Indicators

- Sleep mode

- Awake

## PM-Relevant

- IEC  Symbols
- Save; economize		       Stand-by
*Note*: The percentage of economizing
- may be indicated in the figure.

## Standard PM Interface Elements

- Terms
- Symbols/Icons
- Indicators
- Operating Metaphors

## Project Elements

- Scope: Office Equipment -> All Electronics
*Initial Phase:*
- Device Review / Inventory of Existing Interface Elements
- Institutional Review
- Literature Review
- Field Research
- Summary Reports

*Later Phases:*
- Draft Standard
- Industry Review / Field Research
- Revised Standard
- Implementation

## Next Steps / Needs

**You provide:**
- Industry / Organization Contacts
- Advice, Guidance
- Review of Results
- BNordman@LBL.gov

**We do:**
- Initial Research —Results to be Published on Web
- Scope out full project plan
- http://eetd.LBL.gov/Controls

## Cell Phones