[Schroedingersat]

> Nobody was ever talking about seasonal storage until you brought it up

It says 2000MW on the document you linked. It's not anyone else's fault if you can't be bothered comparing the numbers 2, 24 and 350.

> But it's not what we really want. What we really want is to capture the excess production of intermittent sources.

Think it through for even half a second. If Tumut 2 is operating at average, then the water it ejects over the course of days or weeks can be stored at any rate up to and including 2GW. In all practical scenarios (which do not include a week straight with nothing but draw followed by a week straight of nothing but charging) what you describe is exactly what snowy 2 does. In situations where the entire system doesn't need to produce net energy, diurnal draw cycles can feed water into Talbingo, and diurnal charge cycles can feed that water into Tantangara (and tantangara s higher so it can be a small jet energy draw). The water needs to be released anyway (but not in any particular week) for irrigation and to keep the river healthy so where is the problem?

If you lack the imagination or ability to apply logic necessary to see how three parts can fit together that's not on anyone else for not spoon feeding you the obvious conclusions available from the sources you cited.