Tata Power’s last hydel generator at the Khopoli hydro power station was activated on Thursday. Set up in 1911, it has six generating units of 12MW each, which are still partially in operation. In 1999, Voith Siemens Hydro was awarded the contract to build a new hydro power station next to the old one, to be equipped with three units with an output of 24MW each. Of these, two units have already been commissioned in March ’01 and ’02.