Hello everyone:

I've followed the example "most_ex7_suc.m", especifically on the*
individual trajectories* case. I am aware that what the code does in this
case (correct me if I'm wrong) is to optimise  the cost of a set of
probability weighted scenarios (and transitions) with certain costs and
constraints over the planning horizon. Let's assume this is the case
without contingencies, for the sake of simplicity. Would it be correct to
say that this specific case is similar for a two-stage stochastic
programming approach? My reasoning is that we commit on the first stage for
the start up and shut down events; then, over the planning horizon we deal
with the redispatch (if necessary), load-following ramp reserve, or fixed
reserve (mdi.FixedReserves), given the probability of the scenarios
previously defined.

Also, some months ago I had the problem in MOST that on the results, when
we had certain unit disconnected (hydro units in my case), we would expect
it to be off (u=0), but it happened to appear on (u=1). Well, the problem
was that I had set the hydro unit with a minimum of zero, so for the
solution it wasn't a problem to update this value since it didnt affect the
results. Since hydro units dont usually run at that minimum level (could be
the case if it's running as a synchronous condenser), I updated this value.
Now this is sorted! So I wanted to share it with the community. Thanks for
the heads up you gave me in that email!.

Hope you are all ok in these days,


-- 
Carlos Ferrandon

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