Engine & Turbine Technology
twice the operating range and more than double the ramp rate per minute of a combined cycle gas turbine - ERCOT’s primary resource for providing flexibility today. Flexible generation is critical to maintaining grid reliability through periods of volatile demand as well as integrating intermittent wind and solar resources 24 hours a day, 365 days a year.
Lower dispatch costs Apex CAES achieves lower dispatch costs than conventional generation by efficiently redeploying inexpensive off-peak power. Off-peak power is used to compress air into an underground cavern, converting electricity into potential energy. Te compressed air is released during periods of higher demand, and supplemented with natural gas, to drive expansion turbines and generate electricity. Natural gas consumption associated with CAES is significantly lower than that of a combined cycle gas turbine, says the company.
As grid operators constantly depend upon flexible generation to maintain reliability, the facility is being designed for high reliability to ensure that it can provide energy and regulation to ERCOT at the lowest cost possible. “Storage assets are my number one tool for maintaining reliability,” noted Terry Boston - ceo of PJM Interconnection, the largest transmission organisation in the USA - recently. Finally, Tokyo-based Hitachi is to supply the steam
turbine, generator and boiler for an ultra-super critical (USC) coal-fired thermal power plant project in Malaysia.
Te 1000MW plant is being constructed under a turnkey contract by a consortium made up of Sumitomo Corporation and major South Korean construction company Daelim Industrial. Tis order marks the first time that Hitachi has supplied equipment for a USC coal-fired thermal power plant in south east Asia. Te plant is being planned by Malaysian power
company Tenaga Nasional Berhad (TNB) at Manjung site in the state of Perak, which is located approximately 300 km north of Kuala Lumpur. Completion is scheduled for October 2017.
Curbing emssions Hitachi boasts sophisticated technological capabilities for achieving world-class highly efficient power generation and stably operating USC coal-fired thermal power plants even with low-grade fuel. Highly efficient power generation curbs carbon dioxide emissions, reducing the burden on the environment. Hitachi also has an extensive track record of 50 orders for USC coal-fired thermal power plants in Japan, China, South Korea, Europe and the USA. Te company says it aims to actively participate in the large number of new coal-fired thermal power plants that are expected to be constructed in Malaysia and south east Asia in the near future. ●
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