Cogeneration for Dummies

[Antti-L]

I thought that I had to convert the steam capacity (210 MW) in some way, that I couldn't just add it to the electrical, but I guess I was wrong, I just have to input (0.21+0.12) GW as total capacity.

Well no, if you model the plant as a backpressure plant, and use NCAP_CEH=0. In that case the capacity should just be the electrical capacity in the backpressure mode (120 MWe). And NCAP_CHPR(FX) should then be 210 / 120, if steam and  electricity are produced in these proportions.