Last year Virginia’s General Assembly passed more than 30 separate clean energy bills, which together put Virginia on a path to zero-carbon electricity by 2050, enabled massive investments in renewable energy, storage and energy efficiency and eased restrictions on distributed solar. But many of the bills that passed were not perfect, and most of the new mandates affect only the electric sector. Only about a quarter of Virginia’s greenhouse gas emissions comes from power plants, so getting serious about a zero carbon economy means finding ways to reduce emissions from transportation, bui...