The main PDL Industries building located at 2-8 Hazeldean Road, ...

Old brick pavilion.

View of electricity pylons at the Sparks Road substation between ...

Interior of Islington substation showing the travelling crane ...

Exterior of the Islington station condenser house.

Exterior of the Islington Substation. The full output of the ...

A man sitting in the control room of the Islington substation. ...

A group of engineers inspecting the transformers at Islington ...

Bruce Tudehope, a second year apprentice, wires the controls for ...

View across the transformers to the surrounding area at the ...

View of transformers at the Islington substation.

View of the Islington substation under construction with workmen ...

Transformers and grid at a Substation near Harewood aerodrome ...

Fibreglass design for a Central Canterbury Electric Power Board ...

Transformers and grid at the Addington Power House and ...

Close-up of transformer banks at the Addington Power House and ...

Transformers and grid at the Addington Power House and ...

Interior of dials monitoring power and voltage at the Addington ...

Interior of dials monitoring power and voltage at the Addington ...

Close-up of machinery by Metropolitan Vickers at the Addington ...

Substation at the shops on the corner of Strowan Road and ...

Substation situated on Waimairi Road at Bush Inn Shopping ...

Substation situated in the carpark at 49-55 Wordsworth Street.