Re: APC Reporter - Unit Hourly Tab - Production Cost ($)
That might be a better question for our friends at ABB (Hitachi?). My answer to that would be things like emissions (which you mention), and bid adjustments. I'm not sure how PROMOD computes the production cost values in the UNT file - maybe it's from heat mmbtu x (fuel cost + O&M) + emissions, or it may be taken from the area under the cost curves + startup. We would be interested to hear from the PROMOD people on that question.