POWER GENERATION ASSEMBLY AND METHOD

摘要

A method of starting a gas turbine cycle comprising a gas turbine (9) and a heat recovery steam generator (10), the method comprising: heating water in a steam cycle (22) with a base load heat source (20); powering one or more steam turbines (24a, 24b) with steam from said steam cycle; and diverting a portion of the steam from the steam cycle (22) to the gas turbine cycle, so that the gas turbine reaches a rated power output more rapidly than without the diversion of the portion of the steam from the steam cycle. Also disclosed is a power generation assembly connectable to a base load heat source (20) arranged to heat water in a steam cycle (22) and power a steam turbine (24a, 24b), the power generation assembly comprising: a gas turbine cycle comprising a gas turbine (9) and a heat recovery steam generator (10); and diverting apparatus (30) configured to selectively divert a portion of steam from the steam cycle (22) to the gas turbine cycle on start up of the gas turbine, so that the gas turbine reaches a rated power output more rapidly than without the diversion of the portion of the steam from the steam cycle.