After a few weeks at rest, the Callaway Nuclear Plant is back up and running.
Ameren Missouri says the reactor is back online Monday after shutting down following a small fire on July 26th. The utility says power cables that connect the plant to the electric grid shorted out and sparked the flames.
The Callaway County reactor supplies about 20% of the power Ameren sells to its 1.2 million customers. Other plants helped make up the difference while the reactor was shut down.