Siemens’ H class gas turbine installed at the Irsching 4 in Bavaria passed a significant and much heralded landmark earlier this month, when it leapt the famous 60% combined cycle efficiency barrier. It achieved the world record, the “four minute mile” of combined cycle power generation with a combination of the SST5-5000 steam turbine, a SGen5-3000W generator and the SGT5-8000H gas turbine in a single shaft configuration.
