Worst case Hydro Tasmania scenario: constraints on Basslink import; mean water storage could drop as low as seven per cent in May 2009

Lake Gordon was the key hydro storage for Tasmania, said Transend its 2008 Annual Planning Report Transend -in its role as Tasmania state electricity planner - said it did not have time to carry out full scenario studies identified in the 2007 Reliability Review Report, required by the Regulator in April 2008. However one worst case it had modelled, was its Scenario 5 - if drought extended and there were limits to Basslink imports, water levels could fall to seven per cent in May 2009. It had modelled assumptions on gas price, thermal bids, hydro reservoir water values. Carbon costs were not modelled.

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Did Snowy Hydro break the rules of its water license when it sold water to irrigators, when the rules say, it may not sell water to irrigators?

While Snowy Hydro had sold water to Victorian irrigators, (Mowamba Borrow) in breach of its license, it was not in breach of the license argued Snowy.

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NEMMCO forecasts suggest drought-induced electricity price spikes in Summer for South Australia and Victoria

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