2019 may have been the year clean energy irreversibly turned a corner toward dominance in the United States. After all, who could have foreseen last January that America would realize existing coal can’t compete against new renewables, see new solar-plus-storage beat new natural gas generation on price, have 13 states and territories committed to 100% clean electricity, or envision a path to nationwide net zero emissions?
So what will 2020 hold? Increasingly ambitious state policy combined with fast-falling technology prices could mean record renewable energy installations. Expanding efforts to decarbonize U.S. power supplies and buildings could shutter fossil fuel infrastructure faster than ever.