• Low power CPUs
• DC distribution: only a few large efficient AC/DC converters
• Chilled water directly into racks
• Efficient scheduling:dynamically shift load to areas with lower costs
• Bandwidth: lower overhead network protocols

Smarter 'Hotel' load

• 'Hotel' (mostly cooling) loads are 30%
• KW = $ with time of day pricing -- makes a difference when you use power
• can be much smarter with Thermal Storage, phase change materials, pre chillers
• Colocation with facilities with low grade heat for absorption chillers
• Geothermal Heat dumps for suitably located datacenters