# Presentation: 834492

## Computer Power Management for Enterprises

- A Practical Guide for Saving up to $100 per PC Annually
- David Korn, The Cadmus Group, Inc.
- Mike Walker, Beacon Consultants Network Inc.

## 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

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

## Computer Wattage Now Exceeds Monitor Power

## ...And the Stock is Large

- ...And the Stock is Large

## PM Utilization: High for Monitors, Low for Computers 

## Energy Use of Monitors

## Energy Use of Computers

**Notes:**
Lighting over 20 million homes annually (all the homes in NY and CA combined)
Preventing 18 million tons of carbon dioxide (emissions of over 3 million cars)

## What Would 50% CPM Accomplish?

- Electricity to light 8 million homes

- Reduce 6 million tons of CO2
- Remove 1 million cars from the road

## ENERGY STAR: Your Solution for Minimizing Computer Electricity Use

## ENERGY STAR is Your Tool for Reducing Computer Power Use

**ENERGY STAR is Your Tool for Reducing Computer Power Use**

**zzzzzzzz...**

## Computer 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

**Notes:**
CPM = system standby or hibernate

NOT hard disk spin down

## What is Power Management?

- Built into Windows 95,98, ME, 2000, XP and now Vista
- Settings simply need to be activated

## 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)

- 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

**Notes:**
We are referring to AC CPM and not DC.

## 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

**Notes:**
Theme: Prize is big but you will have to do a little work for it...

## 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

**Notes:**
All Dell OptiPlex PCs are now shipped with system standby defaulted
CSC’s standard operating environment utilizes system standby

## Various Approaches to CPM are Working

| Site (PCs) | Centrally managed CPM w/: | Wake up technique: |
| --- | --- | --- |
| Army IMCEN (VA) (10,000) |  |  |
| GE 
(75,000) | Computer Associates Unicenter Asset Management (to distribute the necessary registry key changes) | User Initiated Wakeup |
| North Thurston Public Schools (4,000) | Energy Star EZ GPO | User Initiated Wakeup |
| Bemis Company, Inc. 
(5,000) | Desktop Standard’s Policy Maker | Scheduled Wakeup from S3 |
| BC Hydro 
(2,000) | Verdiem’s EZ Surveyor | Scheduled Wakeup (from S5) |
| Vision Service Plan (2,000) | 1 E’s Nightwatchman | WOL from S5 |
| Spring Branch ISD (7,000) | Manually Set all PCs to Sleep | User Initiated Wakeup |
|  |  |  |
|  |  |  |

## Software Tools

- PolicyMaker
- Centrally control MPM and CPM on PCs using group policies
- _[www.desktopstandard.com](http://www.desktopstandard.com/)_
- Surveyor Network Energy Manager
- Measures energy consumed by network
- Manages power settings of PCs and monitors
- _[www.verdiem.com](http://www.verdiem.com/)_
- NightWatchmanTM
- Shuts down computers and monitors when not in use
- _[www.1e.com/SoftwareProducts/NightWatchman/Index.aspx](http://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](http://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](http://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](http://www.apple.com/pr/library/2004/jun/21ard.html)_

## VISTA May Make CPM Easier to Implement and Use

## 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

**Notes:**
the plan is for the machines to go into a stand by mode when the power button is turned off. In stand by, all the work the user has done is saved in the memory, and the machine receives enough power to keep that data there. If battery levels reach a critically low level, the laptop will power up enough to save the needed information onto the hard drive, and then it will power down completely. 
Desktop machines will enter a mode Microsoft is calling "hybrid sleep." In this case, Vista will save the system state and other information to disk, just in case power is lost, but will then enter a sleep mode from which the computer can quickly be roused. 
Microsoft is also developing a third mode, known as "away" mode, for media-centered PCs. In that setting, the user will push a button and the machine will look off and sound off. However, it will actually still be quietly operating and ready to record a TV show or serve up content to a TV in another room, if needed. 

## How to Move Forward in Your Organization

## 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

**Notes:**
Good news: solutions exist to all of these obstacles.  Let’s go thru them...

## 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

**Notes:**
This is all about making an IT admins will into reality. 

## 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

**Notes:**
Is the machine available when it needs to be to perform the work it needs to and still able to enter into and stay in a low power state?

## 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

- 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

- 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

- Additional information at: _[www.energystar.gov/powermanagement](http://www.energystar.gov/powermanagement)_
- Contacts:
- Dave Korn, The Cadmus Group, Inc. (EPA Technical Support Contractor): 617-673-7116, _[dkorn@cadmusgroup.com](mailto:dkorn@cadmusgroup.com)_
- Steve Ryan, US EPA Energy Star Program Manager: 202-564-1254, _[Ryan.Steven@epamail.epa.gov](mailto:Ryan.Steven@epamail.epa.gov)_
- Mike Walker, Beacon Consultants Network Inc. (EPA Technical Support Contractor): 617-921-8445, _[mwalker@beaconconsultants.com](mailto:mwalker@beaconconsultants.com)_