• 54 views | 2 messages Discussion: LEAP
    Topic: LEAP OptimizationSubscribe | Previous | Next
  • Mawunyo Dzobo 6/2/2017

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    mso-fareast-font-family:"Times New Roman"">I have been using LEAP model
    in the simulation mode for some time now. I have an assignment which
    requires me to use the LEAP model in the optimization mode. I have some few
    questions, (i) how does the LEAP
    model optimize new capacity additions; (ii) does it pick the plants annually? (iii) how does the LEAP model decide
    which plant among a set of plants must come on-line; (iv) does the also
    optimize the dispatch of the plants and how?; (v) I have done some optimization exercises
    using the LEAP model but the results do not look very good, e.g. some existing
    plants were not picked during the optimization, what do I have to do; and
    finally (v) how do I put a cap on total capacity addition or generation? I
    shall be very grateful to get a quick response from you.




  • Taylor Binnington 6/5/2017
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    Hi Mawunyo,

    Most of your questions are answered in the optimization documentation, here. To some of your more specific questions:

    ii) Yes, plants are selected for an annual capacity addition. Capacity calculations in LEAP are not performed on a sub-annual time step.
    v) I'm not sure what you mean that some of the existing plants were not chosen by optimization. Is there a reason that you expect LEAP to construct additional capacity, for those plants which already exist?
    vi) You may place a cap on the capacity of each process individually, using the Maximum Capacity variable. There is not a simple way to constrain total generation (though keep in mind that generation itself is constrained by the amount of available capacity in each time slice). I'm happy to offer some suggestions on this later if you wish. Before I do, please ensure that you first have a solid understanding of LEAP's optimization calculations.

    Hope this helps,
    Taylor