Prescribing Ramp up and Ramp down rates for thermal power generation capacities
Ok, you are comparing the first hourly time slice of each month compared with the last hourly time slice in the previous month, even though you have 12 seasons (representing months), and 24 DAYNITE timeslices under each.

This implies that you have misunderstood the TIMES conventions concerning such representative days in each season.
As there are actually about 30 days in each month, you cannot assume that after each day in January, the next day would be in February, and then the next day in March, and so on. It would not make much sense; it would not correspond to reality.

Instead, in TIMES, each day in January is assumed to be followed by another day in January! Consequently, the DAYNITE timeslices under each parent represent a daily timeslice cycle for a representative day in that season, such that the last timeslice of the cycle is followed by the first timeslice of that same cycle. This correctly reflects the reality in 29 cases out of the (average) 30 days in each month.

If you want that in your model the last hour of April is followed by the first hour of May, you need to have all hours of these months represented. This means that you should have 8760 timeslices in your model.  But I hope you can see that the TIMES timeslice hierarchy does offer a reasonable way of modeling the whole year in an adequate way, with much less timeslices.

Concerning upgrading your ANSWER-TIMES to a more recent version that supports the new parameters, please contact Ken Noble.

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RE: Prescribing Ramp up and Ramp down rates for thermal power generation capacities - by Antti-L - 08-09-2016, 05:04 PM

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