Enhanced JAC-series gas turbine surpasses 8,000 hours

10 July 2018

Mitsubishi Hitachi Power Systems, Ltd. (MHPS) announced that a JAC-series gas turbine using Enhanced Air Cooling has surpassed 8,000 cumulative hours of combined cycle operation at the company’s commercial power plant in Takasago, Japan. Exceeding 8,000 hours of commercial operation is widely taken as an industry benchmark for demonstrating a gas turbine’s reliability.

The original J-Series was launched in 2009 and achieved 8,000 hours of commercial operation in 2011. To improve efficiency and operability, MHPS then developed an air-cooled combustor with Tohoku Electric Power Co. which resulted in the JAC gas turbine. To further improve the JAC, MHPS then developed Enhanced Air Cooling that just achieved 8,000 hours of commercial operation.

In total, 55 J/JAC turbines have been ordered globally and an additional 16 have been technically selected by power generation customers, making this one of the most successful product introductions in history. Among them, 28 J-series turbines are now in commercial operation, accumulating over 600,000 hours of commercial operation. The MHPS method for demonstrating 8,000 hours of commercial operation before introducing new products has resulted in the industry’s most reliable products, with these 28 turbines having demonstrated 3rd party verified industry-leading reliability of 99.3%.