Combined cycle power utilizes a combination of the combustion turbine (Brayton Cycle) and the steam turbine (Rankine Cycle). While the combustion turbine generator creates electricity, heat recovery steam generators (HRSG) repurpose waste heat to create steam and power a turbine. This makes these power plants far more efficient than traditional fossil-fired power plants. The combination of air and water as the working fluids provides efficient, reliable and economic power.
This type of power complements today’s energy market, which frequently requires plants to come online and shut down quickly. The fluctuating demand requires increased operational flexibility – critical to success. With environmental requirements continuing to change, plants are continuously improving the efficiency for intermediate load operation. The focus has shifted to shorter ramp times, frequency support and reliable operation to maintain grid stabilization and achieve financial goals.