  This paper introduces the TulipaProfileFitting.jl package, a tool developed
in Julia for generating renewable energy profiles that fit a specified capacity
factor. It addresses the limitations of naive methods in adjusting existing
profiles to match improved technology efficiency, particularly in scenarios
lacking detailed weather data or technology specifications. By formulating the
problem mathematically, the package provides a computationally efficient
solution for creating realistic renewable energy profiles based on existing
data. It ensures that the adjusted profiles realistically reflect the
improvements in technology efficiency, making it an essential tool for energy
modellers in analyzing $CO_2$-neutral energy systems.

Optimization and Control