For an educational centre the factory group installed an off-grid TWF15 (75 kW) wind turbine on a remote island North of Darwin Australia. As diesel generated power was the only source of energy the wind turbine will now minimize their fuel costs. The excess of energy is stored in a battery bank, to guarantee autonomy for several days. Installation of the turbine was quite a challenge as the turbine crane and skylift had to ship in by a bard on the right tide. The special made controller will charge the batteries in case of access of power.