The supercomputer at the Thor Data Center is based on a cluster of 288 HP ProLiant BL280c servers. The Intel Xeon Processor L5530-powered cluster is comprised of 3,456 compute cores with 71.7 terabytes of usable storage, and pumps out 35 teraflops of performance. While building and shipping the machine's parts to Icelandic-produced CO2, the machine -- and in fact all of Iceland -- is powered 24/7/365 by a mix of nothing but renewable hydro and geothermal power. To light up Iceland's electrical grid, no fossil fuels puff, smoke or burn. Intel Free Press story: Green Supercomputer Crunches Big Data in Iceland. The world's first zero-emission supercomputer at the Thor Data Center near Reykjavik draws its power from renewable resources.