By permission of Underground Electric Railways Co., Ltd. 



INTERIOR OF LOTS ROAD POWER STATION, CHELSEA 



This station, which covers four acres of ground, supplies current for operating the Metropolitan District and all the tube railways 

 of the Metropolis except the Central London. The equipment consists of ten generators (eight of which are seen in the photograph) 

 driven by Parsons steam turbines and giving a maximum total output of about 80,000 kilowatts (107,000 horse-power). Alternating 

 current is generated at i i.ooo volts and distributed to sub-stations, where it is converted into direct current at 600 volts for the train 

 motors. Automatic machinery raises the coal (260,000 tons of which are burned annually) from barges to overhead hoppers and feeds 

 it to the boilers. 



