|
The New Plymouth Power Station (NPPS) was a 600 MW thermal power station at New Plymouth. Located at Port Taranaki, it was dual fuelled on natural gas and fuel oil. Constructed at a time of major hydro and HV transmission developments, it was New Zealand's first big thermal power station planned for continuous base load operation.〔 The plant has been owned and operated (in turn) by NZED, NZE, ECNZ and Contact Energy. In 2013, the site was sold to Port Taranaki and Methanex. ==History== The power station project commenced in the 1960s, to meet rising electricity demand in New Zealand. Initially, fuel for this power station was to be coal, barged up from the West Coast, and the Port Taranaki site was chosen ahead of one at Wanganui. During early stages of the project, the Maui gas field was discovered off Taranaki. The plant design was changed to be dual fuel on either natural gas or heavy fuel oil. The first unit was commissioned in February 1974,〔 with the fifth unit coming on line in 1976. For the first few years, the plant ran on raw Kapuni gas, converting to Maui gas in 1979. The fuel oil capability was decommissioned in 1991, and reinstated in 2003. Plant operation generally decreased from 1999, after the more efficient Otahuhu combined cycle power station was commissioned. However, the New Zealand power system derives over 60% of its electricity supply from hydro power stations and depends heavily on rainfall. NPPS has often played a vital role in dry years (such as 2001 and 2003), when hydro lake inflows were insufficient to meet demand. Discovery of asbestos, not in an asbestos register, in thermal insulation during 2007 led to the decision by Contact Energy to close the power station. In May 2008, one 100 MW unit (unit 3) was temporarily recommissioned. This was in response to a nationwide electricity generation shortfall resulting from low hydro lake levels. This unit was shut down for decommissioning in December 2008. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「New Plymouth Power Station」の詳細全文を読む スポンサード リンク
|