Genex Power chief executive Craig Francis says the company was still on track to commission its 50-megawatt Bouldercombe battery project in Central Queensland next month, despite one of its Tesla Megapacks catching fire on Tuesday night.

With the single-battery unit still smouldering on Wednesday, Mr Francis said it was too early to determine the cause of the fire. But he confirmed it did not damage any of the other 39 Telsa modules at the project, 23 kilometres south of Rockhampton.