2020 RRS Annual Assessment

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• As of August, 2020 there are 123,950 miles of transmission lines at 100 kV and above in the SERC Region. • Entities within the SERC Region anticipate adding approximately 2,500 miles of transmission during the 10-year reporting period.

Across the SERC Region, member companies continue to build transmission, especially in the first five years of the assessment period, to ensure a reliable interconnected power system. • Transmission is added to ensure compliance with national and local standards, improve intraregional and interregional transfer capabilities, relieve congestion, and ensure generation deliverability.

Detailed Review of 2020 Findings

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