Looks like it's on the far side of the entrance for Kmart/ Coles that this carpark seems to serve.
Cant see any obvious green boxes or obvious pole mounted power supplies.
On a busy day may work as an option for some instead of Euroa on the Hume..
It's a bit longer (think the two straight sides of a triangle, versus Euroa in the middle of the angle, but might be worth it if there are waits.