Operation of diesel power plant

Diesel fuel is combusted in a massive thing not unlike a massive car engine (not anything like a car engine but for simplicities sake I'm calling it an engine).

The diesel turbine causes a magnet to move really fast inside some tightly wound and compact copper coils which create electrical energy.

This energy is transported from the turbine to a "signal box of sorts" to be turned into high voltage, high frequency power ready for the distribution grid.