Australia is in the midst of an electric vehicle boom. The combined rise of battery electric, plug-in hybrids and conventional hybrid cars is steadily shifting the long-term market dominance of petrol and diesel. This is good news for reducing transport emissions, but what might it mean for socioeconomic inequality? Two years ago, we examined more than two decades of rooftop solar installations across Australia to see what made people get solar panels. We found income and education mattered, but