Today in Cleantech

Amazon’s data center efficiency guru James Hamilton has a good post on Amazon’s new spot cloud service—EC2 Spot Instances—where excess data center capacity is being sold via bids on a spot market. Hamilton is not a fan of private clouds and Amazon’s new service is another example of how the best way to maximize data center utilization is with a public cloud that is open to multiple users (and buyers).  Private clouds may have advantages in terms of control and security, but even leading government experts, like former federal CIO Vivek Kundra, have started to question that premise.