The Arnhem laboratories are based in the Rosandepolder on the banks of the river Rhine in the north western part of Arnhem. In 1937 the first short-circuit laboratory started its operations. In 2017, the extended high power laboratory was named the biggest independent laboratory of its kind. Arnhem’s state-of-the-art facilities include the high power testing laboratory, high voltage laboratory, metering, protection and substation automation laboratory, flex power grid laboratory and the material research laboratory.