Siemens has announced it has secured another major order worth more than $1bn for a combined cycle power plant in Saudi Arabia, Arab News has reported. Under the terms of the contract, Siemens is to supply key components for the IPP Qurayyah combined cycle power plant (CCPP). With an installed capacity of 4 gigawatts (GW), the plant will be one of the world’s largest CCPPs, and will supply enough electrical energy to meet around one tenth of the country’s current power demand for its 28 million inhabitants. Commissioning of the total of six blocks is scheduled for 2014.