Generation Capacity Expansion Problem Considering Different Operation Modes of Combined-Cycle Gas Turbines

The design of future decarbonized power systems is one the most relevant and challenging problems that system planners are facing nowadays. It expected Combined-Cycle Gas Turbines (CCGTs) play a role in these to provide peak reserve capacity when intermittent units be unavailable. However, large computational size planning has prevented so far from modeling actual operation CCGTs accurately. This paper intends quantify effect generation expansion problem. For doing that, modeled using mixed-integer linear formulation considers different modes. Afterwards, decisions realistic case study analyzed accuracy degrees for CCGTs. numerical results suggest simplification overestimates flexibility provided by units, which increases installed renewable units.