Active human beings can produce as much heat as a one bar electric fire. The same current supply could be used for the electric fire engine system. Siemens Brothers Company of London built and experimented with an electric fire engine in 1891. In 1998, Taylor released his fourth solo album "Electric Fire". In 2017, Rosenbauer introduced a concept electric fire truck. It was to manufacture self-propelled automobile electric fire engines and general equipment for fire departments. The Paris Fire Department experimented with a self-propelled electric fire engine in 1899. The Electric Fire Engine Company of America was formed December 1899 in Des Moines, Iowa. The electric fire engine would have several advantages over the steam fire engine. The electric fire was invented in 1912 and became popular in the 1950s. She also utilized electric fire alarms and annunciators with several hydrants in case of fire. Electric Fire is the fourth solo album by Roger Taylor, from the band Queen. The Fire of Spirit, or Electric Fire; The Fire of Mind, or Solar Fire.