Integrated Solar Combined Cycle (ISCC) technology aims to draw the environmental benefits of solar energy together with the operational advantages of a 'conventional' gas turbine-steam turbine combined cycle plant. While the solar resource partially substitutes fossil fuels, the installation can also supply energy to the grid whenever it is required. In addition, by taking advantage of the existing infrastructure associated with the development of a conventional thermal power plant – including but not limited to site access, power transmission links and a steam turbine power island – the economics of the concentrating solar thermal component are likely to be significantly enhanced.