As the nation’s leading nuclear energy producer, Illinois is uniquely positioned to capitalize on or fall victim to the latest rush for the carbon-free but controversial power. The federal government promised a new wave of nuclear energy generation more than two decades ago, but steep construction costs scuttled nearly every one of the ambitious projects. This time, nuclear energy is being pushed by tech giants scrambling to meet climate pledges set long before data centers’ power needs skyrocketed, largely because of artificial intelligence.