Default Demand Settings in ENET39

General
1

Hello,

I’m interested in adjusting the default demand settings in the ENET39 network, and have two questions related to this goal.

  1. I believe that this can be accomplished by simply adjusting the .PSETDEF attribute of each EDEM object, as this will uniformly scale the default demand profile (e.g., MA_DEMAND_SHAPE) while maintaining the profile shape. Is my understanding here correct?

  2. How were the default .PSETDEF values for each EDEM object in the ENET39 system determined? I am trying to correlate these values to the historical peak load for ISO-NE (linked here), but the values are different by an order of magnitude. For example, ISO-NE reports that in 2023 the Coincident Summer Peak in Massachusetts was 11,383 MW. Comparatively, the sum of PSETDEF values for all EDEM objects located in MA is 2,301 MW. Is it possible to correlate the PSETDEF values to the historical load in ISO-NE?

Thanks

2

Hi @rob.stallman,

Thanks for your question!

For your first point, you are absolutely correct.

For your second point, the PSETDEF values are taken directly from the IEEE 39 bus system. We recently received a very similar question about demand, and I’d recommend you check out the response to that here.

You could certainly correlate the total demand in this system to historical ISO-NE demand. If you were to do so, you would need to add additional generators to serve the additional demand and you’d likely also want to keep in mind the PMAXDEF values for each line to ensure enough transmission to meet that demand.

Happy modeling!

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