Computer Power Management for Enterprises Mike Walker, Beacon Consultants

1. Computer Power Management for EnterprisesMike Walker, Beacon Consultants A Practical Guide for Saving up to $100 per PC Annually

2. Outline • History: Estimated Energy Use of Computers and Monitors (1998 – 2006) • ENERGY STAR: Your Solution for Minimizing Computer Electricity Use • Computer Power Management • VISTA May Make CPM Easier to Implement • How to Move Forward in Your Organization

3. Estimated Energy Use of Computers and Monitors (1998 – 2006)

4. Computer Wattage Now Exceeds Monitor Power

5. …And the Stock is Large

6. PM Utilization: High for Monitors, Low for Computers

7. Energy Use of Monitors

8. Energy Use of Computers

9. What Would 50% CPM Accomplish? • Electricity to light 8 million homes • Reduce 6 million tons of CO2 • Remove 1 million cars from the road

10. ENERGY STAR: Your Solution for Minimizing Computer Electricity Use

11. ENERGY STAR is Your Tool for Reducing Computer Power Use zzzzzzzz…

12. Computer Power Management

13. What is Power Management? • Monitor power management (MPM) places active monitors into a low power sleep mode after a period of inactivity • System standby and hibernate features place the computer itself (CPU, hard drive, etc.) into a low power sleep mode

14. What is Power Management? • Built into Windows 95,98, ME, 2000, XP and now Vista • Settings simply need to be activated

15. Why Power Management? • Use less electricity • Half of energy used to power PCs is wasted • Reduce peak load demand charges • Some utilities charge up to $200 per kW per year, many charge $150/year • Roughly every 180 PCs or monitors power managed saves 1 kW of peak demand • Reducing cooling loads • Typical office bldg with internal heat load and moderately efficient system saves an additional 15% • In southern climates savings can be 30% or more

16. Computer Power Management (CPM) • Flavors of CPM • Sleep(System Standby S3) • saves 40-80W • wakes up in seconds • Hard disk spin down • saves very little • Hibernate (S4) • same energy savings as S3 • wakes up in 20+ seconds • saves work in the event of power loss • Shutoff (S5) • same energy savings as S3 • wakes up in 20+ seconds • saves work in the event of power loss • Original goal of CPM: maximize laptop battery life • Increasingly deployed to save electricity on desktops (on AC power) -- can save up to $50 per computer annually • Modern CPM shuts down critical system components -- CPU, PCI bus, fans, et al; • Most PCs currently use S3/S4 for sleep, and S5 is sometimes used to save power

17. CPM’s ROI • CPM activation in networked environments is not as straightforward as MPM • Care must be taken to ensure that sleeping computers do not interfere with the distribution of administrative software updates • Older software applications and some peripheral devices may not conform to the latest ACPI standards, and should be tested for compatibility with CPM • Still, given the savings potential, CPM offers a tremendous ROI • An org with 6000 PCs can expect to reap 3 year savings in excess of $1 million, with costs typically in the low thousands

18. CPM: Where it works best • Pentium IV (or newer) processors • Windows 2000 or XP • Regular administrative software updates are “pulled” by clients from the network, or Wake on LAN features are available to wake up client machines to receive administrative updates • Energy savings (up to $50 per PC annually) are compelling enough that organizations are adopting CPM

19. Various Approaches to CPM are Working

20. Software Tools • PolicyMaker • Centrally control MPM and CPM on PCs using group policies • www.desktopstandard.com • Surveyor Network Energy Manager • Measures energy consumed by network • Manages power settings of PCs and monitors • www.verdiem.com • NightWatchmanTM • Shuts down computers and monitors when not in use • www.1e.com/SoftwareProducts/NightWatchman/Index.aspx • EZ GPO • Group policy object solution for MPM and CPM • Download for free at www.energystar.gov/powermanagement • Apple’s Mac OS X 10.4 (Tiger) Server • Centrally control MPM and CPM on Macs using built in policy manager • www.apple.com/server/macosx • Apple’s Remote Desktop 2 • Centrally control MPM and CPM on Macs • www.apple.com/pr/library/2004/jun/21ard.html

21. VISTA May Make CPM Easier to Implement and Use

22. Windows Vista • Microsoft is extending Windows power management features in Vista. Anticipated improvements include… • Smarter “hybrid sleep” will be the default when the power button is turned off • Vista includes tools called Group Policy Objects that IT administrators can use to easily control CPM. These did not exist in XP. EPA’s GPO tool was a way to get around this limitation. • Vista will be shipped with MPM and CPM defaulted • Software applications will no longer be allowed to veto sleep

23. How to Move Forward in Your Organization

24. Suggested Tasks • Review behaviors • Shut off at night • Sleep enabled for monitors and computers • Calculate savings • Energy managers • Senior staff • Contact EPA for help if needed • Engage your IT department • Central management of CPM • Need to access computers at night

25. How to Centrally Manage CPM • Use in house solutions • 3rd party software • EPA’s EZ GPO tool activates system standby (S3/S4) • Vista supports central management of CPM related settings • Desktop Standard’s PolicyMaker (also MS) activates S3/S4 • Verdiem’s PC Surveyor manages PM features and implements time-based power profiles • 1E’s NightWatchman remotely turns off computers (S5); requires enabled WOL

26. Access to Sleeping Computers • OBSTACLE: Many IT managers perceive need for continuous availability • SOLUTION: • Sites can wait for maintenance events (patching, backup, etc) to occur on wake up (GE does this) • Wake-on-LAN (WOL) can be implemented • Scheduled wake ups can provide needed availability

27. Wake-on-LAN: What is it? • WOL is a means to wake networked machines • Originally designed to allow for remote administration of client PCs • NIC signals a PME to wake the machine when it receives network traffic • The NIC can be configured to look for specific types of network traffic (ie “The Magic Packet”) • Various configuration and network topology is required to make this work

28. Technical Assistance • We help develop energy savings estimates • We help IT administrators quickly identify the easiest, lowest risk paths to power management • A brief conference call with your IT administrator(s) is usually all it takes to get started

29. Summary • Implementing MPM and CPM can save $50 per PC annually • Many organizations are already saving • IT managers are overcoming obstacles to CPM • Growing number of large-scale implementations • We can help you develop your implementation options

30. Contact Information • Additional information at: www.energystar.gov/powermanagement • Contacts: • Mike Walker, Beacon Consultants (EPA Technical Support Contractor): 617-921-8445, mwalker@beaconconsultants.com • Steve Ryan, US EPA Energy Star Program Manager: 202-564-1254, Ryan.Steven@epamail.epa.gov