Hydro Tasmania is Australia's largest water manager, with an annual average of 15,364 GL of water flowing through its power stations.494
The power system in Tasmania uses water from six major river catchments. This use is authorised under a Special Water Licence Agreement. Water management guidelines apply to managing the system as a whole. These guidelines include establishing long-term storage targets, following storage operating rules, managing storage risks and protocols for communication with stakeholders.
Long-term storage targets are established using system modelling. Hydro Tasmania uses this to manage the volatility in inflows, balancing the risk of shortfall against the risk of spill. The modelling incorporates the latest climate change predictions from CSIRO.
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494. Hydro Tasmania (2015)