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Frequently Asked Questions

What is flixOpt?

flixOpt is a Python framework for modeling and optimizing energy and material flow systems. It handles both operational optimization (dispatch) and investment optimization (capacity expansion).

Which solvers does flixOpt support?

  • HiGHS (default, included)
  • Gurobi (commercial, academic licenses available)

How do I install flixOpt?

pip install flixopt

For full features: 

pip install "flixopt[full]"

Do I need to install a solver separately?

No. HiGHS is included and works out of the box.

Can I add custom constraints?

Yes. You can add custom constraints directly to the optimization model using linopy.

Where can I get help?