Home-grown electric vehicle fast-charger Tritium, backed by coal entrepreneurs Trevor St Baker and Brian Flannery, is set for a “double unicorn” listing on NASDAQ after signing a deal with a so-called blank cheque company in the US that looks set to put a rocket under its growth ambitions.

The deal with Decarbonization Plus Acquisition Corporation II, a special purpose acquisition company, will allow Brisbane-based Tritium to go public with an enterprise value of about $2.2 billion and armed with about $390 million on the balance sheet.