Power Management and Other Energy-Efficiency Strategies for Plug-Load

Power Management and Other Energy-Efficiency Strategies for Plug-Load Equipment May 12, 2006 Presented by: Carol Sabo, PA Consulting Group Tom Bolioli for EPA ENERGY STAR Power Management May 12, 2006 Power Management

Presentation Topics • What is power management? • Why implement power management strategies? • What else can you do to save plug-load electric use? • How can you implement power management? May 12, 2006 Power Management 2

What is power management? May 12, 2006 Power Management 3

What is power management? • Monitor power management (MPM) places active monitors into a low power sleep mode after sitting idle for a specified period – Reduces power draw from 30– 90 watts to 2– 3 watts • Computer power management (CPM) places the computer itself (CPU, hard drive, etc. ) into a low power sleep mode – Reduces power draw from 40– 90 watts to 2 -3 watts May 12, 2006 Power Management 4

What is power management? • Power Management capability already exists in most computers—it just needs to be activated • There a variety of software tools to help you: – assess the current status of monitor power management – quickly enable both for computers and monitors on your network May 12, 2006 Power Management 5

Why implement power management strategies? May 12, 2006 Power Management 6

Why implement power management? • PCs and non-PC office equipment are estimated to be the fastest growing energy uses for the commercial sector through 2030 according to the Energy Information Administration—Annual Energy Outlook 2006 Report – Energy consumption for PCs is estimated to grow 3 percent annually – Energy consumption for other office equipment is estimated to grow 4. 1 percent annually – In comparison, energy consumption for other end-uses such as space heating is estimated to grow about 1 percent May 12, 2006 Power Management 7

Plug-Load Equipment Usually Accounts for More Than 20 Percent of the Electric Use in Offices and 900 k. Wh or $100 per Office Employee Annually Computers & monitors Small power supplies Speakers Printers Copiers and MFDs Faxes Scanners and multi-function devices (MFDs) May 12, 2006 Vending machines Task lighting Large coffee machines Water coolers Large refrigerators Other appliances Space heaters Power Management 8

PCs Account for the Majority of Plug Load Electric Use in an Office of 200 Staff May 12, 2006 Power Management 9

Typical Estimated Savings for Implementing Various Power Management Strategies for 1, 000 PCs May 12, 2006 Power Management 10

What else can you do to save plug-load electric costs? May 12, 2006 Power Management 11

Personal Computers and Monitors • Order laptops instead of desktop computers to cut the computer electric use by 50 percent or more • Estimated savings for a laptop instead of a desktop with CRT monitor is $25 to $40 per year per PC May 12, 2006 Power Management 12

Screen Savers Do Not Save Energy • Limit the use of 3 -dimensional screen savers that can double the power use of some PCs • Use dark colors—white and bright colors can increase power use of a screen saver by 20 percent or more May 12, 2006 Power Management 13

PC Monitor Procurement • Consider purchasing LCD monitors when replacing monitors – Average annual savings per monitor (based on 40 watts reduction) is $35 if the monitor is not turned off after hours and drops to $10 savings if the monitor is always turned off after hours – There are other benefits such as reduced heat from the monitor and less flicker that help justify the incremental cost, which has dropped considerably in the last few years May 12, 2006 Power Management 14

Copiers/Document Centers/MFDs • Develop specifications to purchase/lease the most efficient ENERGY STAR model • Power off all copiers after hours using “auto off” feature or manual shutdown • Reduce the wait time before “powering down” • Estimated annual electric cost savings: $30 -$70 May 12, 2006 Power Management 15

Printers • Set laser printers to go into “low power” or “energy saver” mode after 15 minutes of inactivity • Power off all printers (large and small) when staff leave for the day • Total annual savings range from $5 to $27 depending on size of printer, staff behavior, and cost per k. Wh. May 12, 2006 Power Management 16

Eliminate Small Printers • Consider consolidating small individual printers by replacing them with large common area printers • There may be a small electric saving from eliminating the small printers if that change facilitates equipment power management and shut down, but • Operating and maintenance costs savings from ink cartridges and IT support can be significant at $100 per printer May 12, 2006 Power Management 17

Vending Machines • Replace cold beverage vending machines with units that meet ENERGY STAR® Tier II Specifications or install vending misers • Remove vending machine lights or use occupancy sensors • Assess electric costs versus revenues for vending machines • Estimated annual electric cost savings for each machine based on replacement: $130 average savings per unit May 12, 2006 Power Management 18

Water Coolers • Turn off hot water taps for hot/cold units • Install timers to turn off heating and cooling after hours • Purchase ENERGY STAR® qualifying equipment when replacing old units • Estimated annual electric cost savings: $35 -$70 per unit May 12, 2006 Power Management 19

Appliances • Replace very old, inefficient refrigerators with new efficient units • Turn off at night or use timers for the large coffee makers that continuously heat water • Estimated annual electric cost savings: – refrigerator: $35 or more – large coffee maker: $24 -35 May 12, 2006 Power Management 20

NYSERDA $mart Offices Case Study Building: Buffalo City Hall Building Size: 566, 313 total square feet Number of Floors: 26 floors Number of PC Using Employees: 1, 000 Use of Building: City Administration Total Annual k. Wh: 3, 991, 680 Total Annual Electric Bill: $486, 836 Average Electric Cost Per k. Wh: 12 cents Plug-Load Equip. Use: 960 k. Wh/employee May 12, 2006 Power Management 21

Buffalo City Hall Estimated Savings of $71, 400 for 1, 000 Employees at 12 cents/k. Wh Equipment # of Units Low-cost/No-cost Energy Efficiency Measures % Saved With Extreme Office Makeover Total Electric Bill Savings @ $0. 12 PC/Monitors 1000 Shut off & Power Mgmt 69% $55, 857 Printers 330 Shut off & Power Mgmt 31% $4, 138 Copiers/Doc. Centers 75 Shut off & Power Mgmt 67% $6, 815 Faxes/Scanners/MFDs 25 Shut off & Power Mgmt 37% $289 Task Lights 38 Replace w/CFLs 72% $117 Water Coolers 43 Turn off Hot Water Taps 48% $1, 522 Refrigerators 22 Replace Old Ineffic. Units 54% $1, 718 Coffee Machines (Lg) 17 Turn off at night/timers 25% $597 Vending Machines 2 Replace w/ENERGY STAR 62% $354 62% $71, 407 Total Equipment Users May 12, 2006 1000 Power Management 22

How can you implement power management? May 12, 2006 Power Management 23

Activating Power Management Organization Wide • Monitor Power Management is a no-brainer– MPM is stable -- problems associated with MPM are exceptionally rare – Fortune 500 IT departments require less than a day to implement MPM features – Earn recognition from EPA ENERGY STAR • Computer Power Management implementation is becoming more and more commonplace. May 12, 2006 Power Management 24

Means To Activate MPM • EPA Tools – EZ Save - activates MPM and polls network – EZ GPO - control MPM settings using Group Policy Objects • Commercially available tools: – – – Altiris Energy Saver Toolkit Apple’s Remote Desktop 2 CA’s Unicenter IE’s Night. Watchman Desktop Standard’s Policy Maker Verdiem’s Surveyor Network Energy Manager • Replication of image during rollout to W 2000 or XP May 12, 2006 Power Management 25

Computer Power Management – What Is It? System standby (S 3) • Originally designed to conserve battery life on standalone laptops • Increasingly deployed to save electricity on desktops • However, activation in networked environments is not as straightforward as MPM May 12, 2006 Power Management – saves 40+ watts – wakes up in 5 -10 seconds – does not save work in event of a power loss Hard disk spin down – only saves a few watts Hibernate (S 4) – same energy savings as system standby – wakes up in 20+ seconds – saves work in the event of a power loss 26

CPM Tools and Challenges • Like MPM, numerous tools to activate CPM: – EPA’s EZ GPO*; Apple’s Remote Desktop 2; IE’s Night. Watchman; Desktop Standard’s Policy Maker; Verdiem’s Surveyor Network Energy Manager – Replication during rollouts • Unlike MPM, some challenges remain: – If patches are pushed out at night, may need extra step to awaken computers at night – Compatibility issues still exist but becoming less and less of a problem May 12, 2006 Power Management 27

Waking Up Sleeping Computers at Night for Updates • Wake on LAN – Bring PCs out of sleep state at any time – Ideally activated before deployment – Post deployment can be difficult but through re-imaging (Ghost) or registry key push • Task Scheduler – Bring out of sleep state at specific time – Dameware Utilities – Desktop Standard’s Policy Maker – Verdiem’s Surveyor May 12, 2006 Power Management 28

Power Management Conclusions • If you have not activated Monitor Power Management, you should because it is quick and easy and gives you immediate savings • Computer Power Management can be implemented in many cases to provide additional immediate savings • Power Management can implemented to provide additional savings on 80 PLUS Computers May 12, 2006 Power Management 29

More Information • Susan Andrews, NYSERDA Project Manager, (sta@nyserda. org) 1 -800 -NYSERDA (http: //www. nyserda. org/programs/offices/) • Carol Sabo, Lead Contractor, Project Manager, -915 -4034 (carol. sabo@paconsulting. com) 703 • Tom Bolioli, EPA Power Management Tools, 617 -923 -4132 (tbolioli@terranovum. com) May 12, 2006 Power Management 30