Renewable generation has been a touchstone of the energy transition so far this century. Yet electricity production still generates the second largest share of greenhouse gas emissions because more than 60 percent of our electricity comes from burning fossil fuels, mostly coal and natural gas. While this mix is radically changing, with the vast majority of new additions to the grid each year being wind and solar, more has to be done to displace dirty energy before 2030, especially all coal. The creative destruction of incumbents by low-cost solar and wind has only just begun.