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The Greening of IT
314 How Companies Can Make a Difference for the Environment

power management, 22. See also AEM greenhouse gases, 5
(Active Energy Manager) physical space requirements, 7
Chicago-area utility case study, 153 Reed, Bill, 115
on desktop and laptop computers, refresh cycles, 17
enabling, 28 Registration, Evaluation and
Lexington, Kentucky case study, 177-178 Authorization of Chemicals
power supplies, 34 regulations, 80
Power Usage Effectiveness. See PUE regulation. See government regulation
power usage metrics. See metrics Remote Data Protection services, 243
private cloud computing, 240-241 Remote Wake, 111
procurement programs to promote energy renewable power generation methods
efficiency, 62 cost of, 254
product labeling to promote energy hydroelectric power, 255-261
efficiency, 61 advantages of, 257-258
product lifecycle, 20 comparison with other generation methods, 260
professional accreditation by LEED, 121 disadvantages of, 258-259
protocols for building management environmental impact of, 258-259
systems, 43 greenhouse gas emissions and, 257-259
PSSC (Products and Solutions population relocation and, 259
Support Center) Green Data related activities surrounding, 258
Center of the Future. See Montpelier, small-scale plants, 256-257
France case study worldwide production capacity, 261
PUCs (Public Utility Commissions), 69 solar power, 272-279
PUE (Power Usage Effectiveness), 121-122 active and passive solar technologies, 273 ptg
explained, 122-124 CSP systems, 276-277
future development, 125 experimental systems, 277-278
ratings for modular data centers, 162 peak power capacity statistics, 275-276
pumped-storage hydroelectricity, 133, 256 photovoltaics, 273-275
PV (photovoltaics), 273-275 storage systems, 278-279
wind power, 261-272
Q–R energy potential rankings, 269-271
grid management, 263-264
Q7 (offshore windfarm), 266
installed capacity statistics, 267-269
raised-floor cooling systems, 142 intermittency, 262, 264-265
rate-case incentives, 69-70, 73 offshore windfarms, 266-267
rating systems. See also LEED; metrics penetration, 265-266
energy efficiency ratings for green IT, 78-81 small scale generation, 271-272
ENERGY STAR program, 45, 58-59, 79, “Report to Congress on Server and
114-115, 180 Data Center Energy Efficiency”
future of, 127 (U.S. EPA), 4
PUE ratings for modular data centers, 162 reporting in Chicago-area utility case
worldwide building rating systems, study, 155
119-120 resources for information
rebates and incentives. See incentives on cloud computing, 248-249
promoting energy efficiency on green data centers, 40-42
recycling IT equipment, 82-83 on green IT, 35-37, 225
reducing Restriction of Hazardous Substances
desktop and laptop computer energy (ROHS) directive, 80
consumption, 27-30 return on investment (ROI) for green data
energy usage indirectly, 9 centers, 7