A ship power failure is a situation in which power generation or distribution is temporarily interrupted or disturbed. Failure or overload in the ship's electricity distribution system can result in a partial or complete loss of electrical power, i.e. a blackout. Ship power failure might occur when the generation or distribution of power is dysfunctional resulting in blackout. In critical ship manoeuvering time if such failure occurs can have results with huge consequences. Collision, contact damage with a shore structure or running aground are example of some worst power failure cases. Depending on circumstances, however, if power can be restored immediately a ship may avert such a disaster.
More information: maritimecyprus.com/2022/02/27/power-failures-on-ships-safety-study/