Does En-ROADS assume that fossil plants run to end of life?

The documentation appears to say that here:

https://docs.climateinteractive.org/projects/en-roads/en/latest/guide/background.html

This support post appears to confirm it:

https://support.climateinteractive.org/support/solutions/articles/47001144151-why-does-coal-use-grow-so-large-in-en-roads-

I think this is a bad assumption in certain cases. If my cost to buy a trainload of coal is 3 cents/kWh, and a new technology has a total levelized cost of 1 cent/kWh, then by burning coal I'm losing 2 cents/kWh compared to installing the new tech. I have a similar situation if there's no new tech, but a carbon fee raises my fuel cost to 20 cents/kWh. 

Note I am not saying fossil will be replaced just because low-carbon is cheaper overall. I'm only saying a fossil plant will be retired early if the total cost of a competitor is less than the variable cost of the fossil plant.

In the real world, we actually have seen many coal plants close down early for economic reasons, so this does not seem to be an outlandish claim.

I've seen people reference En-ROADS to say that breakthrough technologies and high carbon prices would have limited impact on emissions. I think this is problematic if, in effect, En-ROADS encodes this outcome as a starting assumption by assuming fossil plants always run to end of life.

Ah, ok good! Although I do wish En-ROADS had been too pessimistic. Thanks!