The Horns Rev wind farm, built on a reef about 12 miles west of the Danish mainland, consists of 80 wind turbines, power-generating windmills 360 feet tall. Each turbine has five processors, which run Wind River's VxWorks operating system to control the windmill's gearbox; to measure vibrations; to adjust the orientation of the windmill blades; and to handle communications to the outside world using an Ethernet network.
The farm is expected to supply 2 percent of Denmark's energy and can produce enough power for 150,000 households, Wind River said.
While Linux started as a hobbyists' project, it's grown to be a commercial product of late. Verano, a company that specializes in software for power plants, water distribution systems, factory floors and other critical industrial tasks, has begunLinux.
Although Wind River haswith open-source software, it has never got involved with Linux. Jerry Fiddler, Wind River's chairman and co-founder, argues in a white paper that there are legal concerns about mixing proprietary software with a Linux foundation.
Wind River's software runs computers in everything fromto Formula One .