Multiple factors have driven the energy transition towards a system based on renewable energies, responding to the need for decarbonize the economy due to the current climate crisis. The use of renewables brings new challenges, this resource is ; however, the electricity generated from them is variable, difficult to forecast, and lacks inertia so its integration represents a challenge for operators. Power systems flexibility is the ability to handle differences between supply and load and can be quantified to measure the effects of renewable energies on power systems. Colombia expects the integration of multiple solar and wind farms by 2,030; therefore, so it is essential to evaluate how flexible the Colombian power system is to allow their addition. This paper quantifies the flexibility requirements of the Colombian power system based on the changes on the net load and its ramps, considering scenarios of wind and solar generation and projections of load. This kind of analysis has not