[1] The adjacent Whakamaru switching station is operated by Transpower and is one of eight reference nodes on the New Zealand national grid.

[2] Development work started in 1949 with the construction on 10 kilometres (6.2 mi) of road from Mangakino which at the time was the operational centre of the Waikato hydroelectric scheme.

[3] The foundation rock turned out to be deeply cracked and filled with clays rendering it partially porous.

The main control centre for the electricity generation and transmission system for the entire North Island was established at Whakamaru in 1964.

This reinforced supply lines to Auckland and allowed for the large amount of new geothermal generation that was expected in the Taupo region over the following 5–7 years.