How can I combine the ENET39 transmission and ENET138 sub-transmission and distribution networks?

How can I combine (or connect) the ENET39 transmission and ENET138 sub-transmission and distribution model ready datasets in SAInt in order to execute an integrated Transmission-Distribution simulation?

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This is an excellent question, @Hakeemuddin!

Generally speaking, once networks are in the native SAInt format (.enet, .gnet, .tnet), users can combine similar network types into a single network by using the Include capability. For instance, two electric networks can be combined to create a single electric network. This capability is available in the Network ribbon bar. Once the two networks are brought together, users can use the Join capability (available via the right-click menu) to combine nodes together, or simply create interconnecting branches. When combining two networks, users should exercise care to ensure that the physical properties of the two networks, particularly at the connection points, are reasonably selected such that a combination makes physical sense!

The ENET39 transmission and ENET138 sub-transmission/distribution networks have been specially designed to make the process of combining them as simple as possible. The ENET138 has as a single 345 kV node (ENO.SUBT_N1) that is intended to represent the interconnection point with the ENET39. After creating a single network by including the ENET39 and ENET138 networks together, users can zoom in to this ENET138 345 kV node, where they will see an adjacent 345 kV node from the ENET39 (ENO.BRATTLEBORO_VT). The physical parameters of these two networks have been thoughtfully configured so that the only step necessary to link them is to join these two nodes. First, select the ENO.BRATTLEBORO_VT node, then hold shift and select ENO.SBUT_N1. Right click, and select Join. You’ll get a warning that ENO.SUBT_N1 will be deleted. This is okay, because of how the models have been built!

One the networks are joined, you can open any of the scenarios that were built for either of the initial networks. For instance, the ENET39 related PCM_PEAK_DEMAND_WEEK scenario can be opened on the joined network. Then, just import the profiles and events that go with the ENET138 PCM_PEAK_DEMAND_WEEK, and you’ll be all set to run a production cost model on your combined, transmission/sub-transmission/distribution model!

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Thank you for the detailed explanation! That makes a lot of sense. I appreciate the step-by-step guide on how to combine the ENET39 and ENET138 networks using the “Include” and “Join Nodes” capabilities.

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