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Near/Long-Term Transmission Summary Near-Term Study Summary The Near Term Working Group completed its analysis of the 2020 summer season in June 2020. The study simulated intra-SERC transfers between SERC member entities as well as between SERC member subregions. The study utilized a starting powerflow case incorporating a Security Constrained Redispatch within the MISO and PJM Regional Transmission Organization areas. The studied transfers were layered upon this initial powerflow case and studied independently. Note that the operating conditions of the starting case represent a seasonal peak scenario, and therefore the study is intended to identify limits to the transfers under those conditions. These system conditions are not indicative of the majority of operating conditions the SERC Region would experience during the 2020 summer period. Likewise, the modelled transfers do not represent economic transfer assumptions, but are simulated at the individual SERC entities discretion, by either modifying generation, scaling area loads, or both. This study is not intended to simulate the actual operating conditions of the SERC Region during the 2020 summer period, but is meant to identify possible transfer limitations during
simultaneous intra-SERC transfers between SERC member entities, as well as between SERC subregions. Unit participation and load scaling for the transfers are at the discretion of the participants and can influence the results of the study. Furthermore, the study is based upon a specific set of assumptions, so the results of the study may not be reflective of conditions outside of the scope of the study. Nonetheless, the results of the study may be indicative of potential limits to transfers within the SERC Region. The simulated transfers range from 200 MW to 3000 MW for the company transfers and were 3000 MW for the subregional transfers, with each transfer identifying normal incremental transfer capability and first contingency incremental transfer capability. The study results were reviewed by SERC member entities and no unexpected changes occurred to the transfer limits tested. While variations to transfer limits, as well as changes to the list of limiting contingency/monitored element pairs do occur from year to year, none of these changes were deemed to have potential impact to reliability. The assessment of the interconnected SERC transmission system for the 2024 summer season also included the simulation of single contingencies throughout the SERC Region and the evaluation of the impacts of these contingencies on both individual SERC and neighboring systems. The coordinated contingency evaluation identified no impacts to reliability on individual SERC or neighboring systems for the local transmission contingencies tested.
hypothetical system conditions. Long-Term Study Summary
The Long Term Working Group completed its analysis of the 2024 summer season in December of 2019. This study simulated non-
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