PERTH, AUSTRALIA--August 28, 2012--Researched by Industrial Info Resources Australia (Perth, Australia)--Meridian Energy Limited (Wellington, New Zealand) recently confirmed plans to conduct a major refurbishment of the 90-megawatt (MW) Waitaki hydro plant based in Invercargill, New Zealand. According to the proposal, Waitaki hydro plant will undergo major refurbishments on six operating hydro units.