Question 222971 in Ubuntu Question posted in
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Ubuntu – HiGHS solver for PyPSA-EUR

I am trying to use HiGHS solver for PyPSA-Eur. By setting it in config.yaml like:

  solver:
    name: highs
    options: {}

It throws following error:

RuntimeError: Attempting to use an unavailable solver.

The SolverFactory was unable to create the solver "highs" and returned
an UnknownSolver object. This error is raised at the point where the
UnknownSolver object was used as if it were valid (by calling method
"has_capability").

The original solver was created with the following parameters:
executable: highs
type: highs
_args: ()
options: {}

while creating the environment highspy gets installed properly and no issues there.

While in the pypsa-eur environment if i do python -c "import highspy" it does not throw any error that means highspy is there to be used.

How can we configure pypsa to use HiGHS as a solver?

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2

Answers


  1. 0

    It should work if you use

      solver:
    name: highs
    options: highs-default

    First line defines the solver, second line defines the options to use for the solver.

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  2. 0

    Should you be on Windows, it might be that you have to install HiGHS binaries manually. Not sure.

    https://ergo-code.github.io/HiGHS/stable/installation/

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