World-first flexible export limits are coming to rooftop solar. Here's how they work

Flexible export limits sidestep the problem of electricity network congestion. (Getty: Brendon Thorne)

In the country with the highest uptake of rooftop solar, and in the state with the highest rate of solar panel ownership, lies the coastal suburb of Hallett Cove.

Even by South Australian standards, it has a lot of panels. When the sun rises over the Adelaide Hills, its light falls upon a sea of photovoltaic cells, ready to absorb photons and create electricity.