Exhaust gas
Exhaust gas from each gas turbine passes through an individual CMI heat recovery steam generator (HRSG). For Phase 1 the steam passes through an ABB steam turbine connected to an ABB 50WT hydrogen-cooled turbogenerator. For Phase 2 the steam passes through an ABB steam turbine connected to an ABB WY21 TEWAC (air-water-cooled) turbogenerator. The Phase 1 generator is larger than Phase 2 so needs to be cooled by hydrogen gas.