The US-based data centre specialist Iren announced in June that it is planning to build the city-scale project near the Bundey sub-station, around 75 km north-east of Adelaide.
David Crisafulli has sworn to stand his ground against rules that would require data centre projects to purchase their power from new renewable energy projects.
Councillor John Haddad, whose ward takes in Campbellfield, supported the motion, and said residents told him they did not fully understand what was being proposed at the former Ford site.
