In the clean energy transition, the value of natural gas infrastructure is very important for operating the energy system. Gas-fired power plants contribute to optimized energy systems when they are designed to operate flexibly, responding to demand patterns and the variable supply of renewable energy. Smart electricity grids, renewable energy, battery storage technology, and gas-fired power plants in combination will generally be the lowest cost, low-carbon solution to the growing energy requirements of emerging markets. Private investors and financiers are responding to these opportunities, but the full potential will only be reached with improvements in policy, regulation, and procurement in destination markets.