The US Inflation Reduction Act (IRA) promises to unleash vast amounts of funding for companies to deploy clean energy, including wind and solar power, carbon capture and storage, hydrogen and other technologies in an unprecedented effort to decarbonize the American economy. How has this ambitious legislation changed the U.S. energy system? Will permitting and regulatory delays derail the IRA? What will be the impact of lingering high interest rates? Who are the biggest winners so far? Where has the legislation fallen short of its promises? How durable is the IRA to potential electoral outcomes in 2024?