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

coordination of CRAC units, 141 decoupling, defined, 74
corporate social responsibility, 3 Dell, energy efficiency initiatives, 82
CPP (Critical Peak Pricing), 73 Deming, W. E., 109
CPUC (California Public Utilities Department of Energy. See DOE
Commission), 72 desktop computers
CRAC unit efficiency, increasing, 140-141 energy consumption costs, 27
Critical Peak Pricing (CPP), 73 energy efficiency of, 25-26, 28-30
Crosswell, Alan, 163 desktop virtualization. See client
CSP (concentrating solar power) systems, virtualization
276-277 diagnosis. See assessment
Digital Scroll compressor technology, 141
D disaster recovery
green IT checklist, 218
data center consolidation, 6
India case study, 201
Data Center infrastructure Efficiency.
server virtualization and, 107
See DCiE
virtualization and, 103-104
data centers. See also green data centers
distributed computing, grid computing as,
barriers to energy efficiency, 60
244-245
cooling systems
DOE (Department of Energy)
efficiency strategies, 135-143
DC Pro tool, 225
emerging technologies for, 143-144
Save Energy Now Data Center initiative, 45
energy saving tips, 131
Web site, 36
energy usage statistics, 129-130
Drucker, Peter, 109
liquid cooling systems, 134-135
DSIRE (Database of State Incentives for ptg
stored energy, 132-134
Renewables & Efficiency), 76
defined, 4
energy usage, 4, 18-19, 59-60
cost statistics, 281 E
energy efficiency recommendations, 30, 62-66 eBay, 5
energy ratings, 81 Ebbers, Mike, 88
metrics. See metrics economizer systems in data centers,
statistics, 226-228 139-140
fuel cells in, 143 educational institutions, government
green IT checklist, 215-218, 220-224 regulation and, 66-67
incentives for green technology, 77-78 EEC (Energy Efficiency Certificate)
location of, effect of electricity cost on, program, 51-52
251-252 efficiency. See energy efficiency
power infrastructure, lack of, 6 Efficient Power Supplies Web site, 41
productivity metrics, 125-127 electric utilities. See utility companies
recycling IT equipment, 82-83 electrical energy storage, 132-133
server usage in, 5 electricity. See also power generation
virtualization. See virtualization methods (renewable)
data deduplication, 12-13, 208 costs
data storage, impact of server clean energy projections, 287-288
virtualization on, 105-108 CPP (Critical Peak Pricing), 73
Database of State Incentives for effect on data centers, 251-252, 281
Renewables & Efficiency (DSIRE), 76 per KWH (kilo watt hour), 3
DCiE (Data Center infrastructure U.S. statistics, 282-284
Efficiency), 121-122 worldwide statistics, 284-286
explained, 122-124 data center usage, 59-60
future development, 125 power infrastructure, lack of, 6