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Transmission Projects Projects to maintain or improve transfer capabilities between Regions or subregions are not necessarily obvious in maps or in lists of planned transmission additions. Tie lines themselves infrequently limit transactions. Rather, the limiting elements are most often internal to the entities’ systems. Projects to improve transfer capabilities can include reconductoring lines, replacing transformers, and upgrading terminal equipment.
Figure 7: Transformer Additions Conclusion
NERC Registered Entities in the SERC Region are committed to planning for a reliable delivery system. Transmission upgrades and the installation of new facilities will be necessary to ensure compliance with national and local standards, improve both intraregional and interregional transfer capabilities, relieve congestion, and ensure generation deliverability. The RRS will continue to assess transmission development in the SERC Region and will monitor the implications to current and future reliability.
Figure 6: 10-Year AC Circuit Project In addition to transmission lines, several new transformers are due to come into service during the next 10 years within the SERC Region. Of the 85 transformer projects, 71 have high-side voltages of 200 kV and above.
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