The biggest nuclear power plant in the United States is not a single hulking reactor, but a sprawling complex whose scale is measured in gigawatts and square miles. Its turbines quietly push out ...

Alva Energy has the support of former Intel chief Pat Gelsinger, whose venture firm led its recent $33 million fundraising round.

Microsoft and Constellation Energy are teaming up to restart the long-dormant Three Mile Island nuclear reactor in Pennsylvania. The companies are backed by a $1 billion federal energy loan, part of ...