Brian L
Google
The discovery centre is not big but it gives a good overview of the Snowy Hydro scheme. The terrain model shows the scale of the scheme, with lights showing tunnels, power stations and all the lakes. The operational dashboard on the wall gives real time status of all the pumps, energy generation, water levels and so on. And finally, there is a model of the Tunnel Boring Machine that is being used in Snowy 2.0 right now.
One suggestion that I have for the shop would be to have something like a commemorative coin and/or brass tokens for tourists to bring home memories of their visit.