Combined cycle power plant

A combined cycle power plant, having:

• (i) a first combined cycle power unit having a first gas turbine, a first heat recovery boiler for generating steam from heat from exhaust gas from said first gas turbine and a first steam turbine driven by steam generated by said first heat recovery boiler, said first gas turbine having a high temperature part which is adapted to be cooled by steam and having a cooling steam inlet and a cooling steam outlet;
• (ii) a second combined cycle power unit having a second gas turbine, a second heat recovery boiler for generating steam from heat from exhaust gas of said second gas turbine and a second steam turbine driven by steam generated by said second heat recovery boiler;
• (iii) first conduit means connecting said second heat recovery boiler to said cooling steam inlet of said first gas turbine for supplying cooling steam thereto, for cooling of said high temperature part thereof at least during start-up of said first combined cycle power unit.