IT Greening Computer Power Consumption Study Christian Grieco Time Warner Cable

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Presentation transcript:

IT Greening Computer Power Consumption Study Christian Grieco Time Warner Cable

Purpose of Study Ascertain an estimate of expenditure on electricity to power staff computer infrastructure Determine $ savings potential in implementing various measures to improve efficiency without affecting productivity

DOE & EPA Computer Electricity Research $25 - $75 savings per computer per year 39% of computers in businesses are left powered on overnight and weekends Study translates to savings of $13,750 - $41,250 yearly on DESKTOPS alone Laptop savings not estimated as part of this study

Estimate of PC Inventory 550 Desktops 420 Laptops 750 Flat Screen monitors ? CRT monitors 550 Desktops 420 Laptops 750 Flat Screen monitors ? CRT monitors

Methodology Use Kill A Watt device to measure actual electricity consumption of desktop and laptop computer Measure usage no power savings 24 hours no power savings 8.5 hours power savings 24 hours power savings 8.5 hours

Business Class Laptop DevicePower Draw ( in watts) Laptop17 Monitor26 Printer Standby11 Printer Printing530

Business Class Desktop DevicePower Draw ( in watts) Desktop68 Monitor24

Business Class Desktops Laptops Flat screens

Business Class Laptop Timeframe Power Consumption 24 hours1.40 kWh 8.5 hours.49 kWh Non business hours.91 kWh Power off the machine to realize 65% savings Even with no power saving features set

Business Class Desktop - NO Power Savings Timeframe Power Consumption 24 hours1.77 kWh 8.5 hours1.00 kWh Non business hours.77 kWh Power off the machine to realize 44% savings Even with no power saving features set

Business Class Desktop With Power Savings Features Timeframe Power Consumed Savings using Power Savings Combined Savings 24 hours1.04 kWh.73 kWh 8.5 hours.81 kWh.19 kWh.96 kWh Non business hours.23 kWh.54 kWh Enable Power Savings & Power Off to realize 54 % Savings

Telemarketing Desktops Laptops Flat screens

Estimated Yearly Savings Potential night 3 weeks per month 10 out of 12 months based on 550 desktop computers with ONE monitor Eliminate 212,982 pounds of CO 2 Estimated Total Expenditure on Power Generates 408,870 pounds CO 2