The Switch Engineering Oy engages in the design, development, manufacture, and supply of megawatt-class permanent magnet generator and full-power converter solutions for wind power and other renewable energy applications in Finland and internationally. The company offers megawatt-class generator and converter packages for wind power applications; solar cell power converters/inverters; fuel cell inverters; variable speed gensets; and industrial electric drive trains. It also provides field services, including commissioning, preventive maintenance, field analysis, and component replacement; spare parts; and training and technical support services. The Switch Engineering Oy was formerly known as Rotatek Finland Oy and changed its name to The Switch Engineering Oy in December 2006. The company was founded in 1996 and is based in Vantaa, Finland with an additional office in Chennai, India. It has production facilities in Lappeenranta and Vaasa, Finland; Beijing and Lu’an, China; Barcelona, Spain; Hamburg, Germany; and Hudson, New Hampshire.