probably this is a constraint that hits once renewables reach a certain % of deployment, but will report back once I get to look at the code

If I'm reading pp.47 in Appendix A of the DOE report correctly, the model assumes that solar/wind investment has to include a "capacity reserve" only allowed to be provided by gas turbines, so I guess this is meant to capture the coal inflexibility?

Something to add is that GCAM features a very rich sectoral representation of the economy, but has a myopic representation of agents' expectations (vs. my work, which puts more emphasis on how expectations affect investment dynamics). Interested in understanding how this might drive results!

2/2