The output of the each generating unit is connected to three single phase generator transformers half of which were supplied by Ferranti and the remainder by Canadian General Electric. All had two equal secondary windings which allowed them to be configured to provide either 110 kV or 220 kV. Generating units 1 to 5 are connected to the 220 kV system and units 6 to 8 to the 110 kV system. The transformers are located on a platform above the draft tube. Each transformer weighs 59 tons when fill of oil. From the transformers overhead conductors carried the power across the tailrace to an outdoor switchyard.