There was nothing remarkable about constructing the whole thing on time, otherwise Musk would not have taken the bet on in the first place.
But what about the claim that it can provide back up power and, in the words of the Tesla VP, solve the black-out problem in South Australia.
The battery is rated at 129 MWh.
Currently generation in South Australia is running at 1878 MW, so the Tesla battery could only run the grid for 4 minutes.
Alternatively, according to Tesla, it could power 2500 homes for a whole day, or 15000 for four hours.
