14 | MONITOR | 1/2019 When the power supply ensures survival The 118-m long research vessel "Polarstern" was commissioned in 1982 and is still one of the most powerful polar research vessels worldwide and the flagship of the Alfred Wegener Institute. Particularly in Arctic and Antarctic waters, a reliable energy supply is vital for survival: Bender ISOMETER® has been responsible for the preventive monitoring of the electrical installations on board ever since the mobile research facility’s first journey. The German research vessel Polarstern in the central Arctic ©Alfred-Wegener-Institut/Mario Hoppmann (CC-BY 4.0) TECHNICAL APPLICATION