The C station had four Parsons 60,000 kilowatt (kW) turbo-alternators with steam raised in seven Babcock and Wilcock boilers fed via a steam range , giving it a total generating capacity of 240 MW. The station’s exterior was designed by Giles Gilbert Scott, who also designed Battersea Power Station. The station was one of the first in the world to use hydrogen cooled generators. It was also the first in England to use 66,000 V air blast switchgear.