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Computer Power Management for Enterprises Mike Walker, Beacon Consultants. A Practical Guide for Saving up to $100 per PC Annually. Outline. History: Estimated Energy Use of Computers and Monitors (1998 – 2006) ENERGY STAR: Your Solution for Minimizing Computer Electricity Use

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computer power management for enterprises mike walker beacon consultants

Computer Power Management for EnterprisesMike Walker, Beacon Consultants

A Practical Guide for Saving up to $100 per PC Annually

outline
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
what would 50 cpm accomplish
What Would 50% CPM Accomplish?
  • Electricity to light 8 million homes
  • Reduce 6 million tons of CO2
  • Remove 1 million cars from the road
what is power management
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
what is power management14
What is Power Management?
  • Built into Windows 95,98, ME, 2000, XP and now Vista
  • Settings simply need to be activated
why power management
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
computer power management cpm
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
cpm s roi
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
cpm where it works best
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
software tools
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
windows vista
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
suggested tasks
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
how to centrally manage cpm
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
access to sleeping computers
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
wake on lan what is it
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
technical assistance
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
summary
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
contact information
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