The Leaf should be able to use V2H and I would imagine the Ariya would be the same. Are you planning on getting one @Santa?
chargedevs.com

Nissan Australia touts LEAF V2H capabilities, disses Tesla battery project - Charged EVs
Nissan’s Global Director of Electric Vehicles, Nic Thomas, recently took a trip Down Under for the Australian launch of the Nissan LEAF Plus. In his speech, he highlighted the LEAF’s bidirectional charging capability, which he said is already being used in Japan, and is expected to be available...
