Hyundai's vehicle-to-grid (V2G) rollout in Australia has made progress, with a crucial test being passed using a new standard. The technology, which allows electric vehicles to supply energy back to the grid, is being implemented in various Hyundai models, including the Ioniq. The development of V2G technology in Australia may have implications for the energy sector and electric vehicle owners, who could potentially be paid for supplying energy to the grid.