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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
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Improved and Standard User Interface forPower ManagementBruce NordmanLawrence Berkeley National LaboratoryBNordman@LBL.govhttp://eetd.LBL.gov/ControlsMay, 2000sponsor: California Energy Commission
Overview • Energy Implications • Facts and Assumptions • Non-Office Eqt. Controls • Office Equipment Controls • Project Elements
No Power Management Now(ENERGYSTAR) Potential(100% Enabling) Office Equipment Energy UseAnnual Electricity (TWh/year)
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.
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:The “Standby” Problem • 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)
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
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 Project Elements
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 Next Steps / Needs