There are more than 1.5m households in Australia with rooftop solar. And in a few months time, 40 Tasmanian homeswill be acting as mini power stations – not just producing energy for their own consumption and to export back into the grid, but actively trading and profiting from the power they generate. Much has been written about rooftop solar and the impending boom in battery storage but the key ingredient to turning homes into mini-power…