Saudi Arabia has signed a $1.5-billion deal with Siemens Energy for two gas-fired power plants that will produce electricity for the Kingdom as soon as 2026, with full operations to begin the following year, Gulf media reported on Monday. Siemens will supply the key components for the Taiba 2 and Qassim 2 power plants to be built in Saudi Arabia’s western and central regions, providing approximately 2,000 megawatts of electricity as the Kingdom seeks to change up its energy mix. China Energy International Group is Siemens’ contracting…