Three Mile Island Set to Deliver Nuclear Power a Year Early (1)

Constellation Energy Corp.’s efforts to restart the Three Mile Island plant are moving faster than expected, with the company now saying the Pennsylvania nuclear site will begin producing power earlier than forecast.

The project could restart as early as 2027, the company said in a statement Wednesday. That compares with the original projection of 2028. The earlier outlook comes partly as the project is able to connect faster than was expected onto the grid operated by PJM Interconnection LLC.

Three Mile Island is one of two US nuclear plants that were shut down in recent years for economic reasons, ...