Benmore Hydro Power Station 540 MW

Benmore Hydro,
South Island, New Zealand
Here are 6 alternators of 90 Megawatts each. Stepping up the voltage from 16 kV to 220 kV supplying the South Island and the North Island via the 620 kV (was 500 kV) DC link.
Part of the switch yard has the rectifiers which can transfer from Benmore to Haywards ( North Island ) .

This video was taken in 1991 while on holiday in the South Island and was recorded on a VHS-C camera.
Still very interesting Ferranti and Landis & Gyr electromechanical metering in use.