The Huntly Power Station is the largest thermal power station in New Zealand and is located in the town of Huntly in the Waikato. It is operated by Genesis Power, a state-owned enterprise, and supplies around 17% of the country's power. The Huntly Power Station consists of three separate generating plants - a 1,000 MW coal-and-gas-fired steam plant, a 50 MW gas turbine generator, and a 385 MW combined cycle gas turbine plant.
Each of the four original generating units, which are capable of burning coal, gas, or both, installed in stages between 1973 and 1985, is capable of generating 250 MW (Megawatts) of electricity, giving a generating capacity of 1000 MW. Its chimneys are 150 metres high and each chimney has two flues that are 7 metres in diameter. The plant uses a reheat steam cycle, with C A Parsons turbines and Combustion Engineering boilers.