Limit new investments

[Antti-L]

I suspect that you may be thinking about a dynamic bound on new capacity installed (VAR_NCAP). As you can read from the documentation, dynamic bounds on VAR_NCAP are easy to define, example below for a TCARNELC process, which requires that VAR_NCAP(t) ≥ VAR_NCAP(t−1).
     

Dynamic constraints on investment costs are also possible, but would be more complex.