Odds are great that the battery thing on twitter was a PR stunt for public consumption, not substantive decision making. People don't negotiate infrastructure deals on twitter and email is just as good for actually doing business deals.
In the event that anything actually happened on twitter, someone was probably being negligent in terms of tendering and governance. It doesn't make sense for a few tweets to be critical, so they probably weren't.
It was PR, and maybe a stunt as well, but it worked. It put a huge social pressure on the corrupt Australian politicians who kept the electricity system in their country far behind what Australia can afford. The public actually deserves to take part in what their tax payments are used for.
In the event that anything actually happened on twitter, someone was probably being negligent in terms of tendering and governance. It doesn't make sense for a few tweets to be critical, so they probably weren't.