In late October, Facebook announced plans to build a new data center in Lulea, Sweden, using hydroelectric power for the servers and relying on the local climate to cool the data center for free. At the time, though, Facebook made no commitment to use clean and renewable energy in its other data centers. Greenpeace rated Facebook’s existing data centers as among the dirtiest on the planet in its April report on cloud-computing services, ” How dirty is your data?“ Because the local utility, Pacific Power, obtains 63 percent of its energy from coal, even Facebook’s newest data center in Prineville, Oregon, was rated badly — and this despite its industry-leading PUE (power usage effectiveness) score of just 1.07, indicating that almost all the power it consumes is used for computing rather than ancillary functions such as cooling or lighting. The company should become less reliant on coal, though, as in the future Facebook will favor data-center sites with access to clean and renewable energy, it said Thursday. For Facebook’s existing data centers, though, expect slow evolution, not a revolution, in energy supply: “We’ll engage in a dialogue with our utility providers about increasing the supply of clean energy that power Facebook data centers,” a company statement said. The company has also promised to distribute the results of its research into energy efficiency through the Open Compute Project, an organization it set up to promote low-cost, low-energy computing infrastructure. Greenpeace will help promote the project’s findings, it said. Peter Sayer covers open source software, European intellectual property legislation and general technology breaking news for IDG News Service. Send comments and news tips to Peter at peter_sayer@idg.com.
