Piriaka Power Station - Credit: Wikimedia Commons
The Piriaka power station is a hydroelectric power facility in Manawatū-Whanganui in New Zealand which draws water from behind a weir on the Whanganui River near Piriaka and diverts it through a canal and penstock to the Piriaka Power Station, which is located approximately southeast of the town of Taumarunui, via SH4. The power station discharges back into the Whanganui River. Read more on Wikipedia
Source: en.wikipedia.org