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Transmission Line Deficiency (TLD) Line 520 – Lancaster Erie County, NY Project Purpose and Need Regional Benefits: • Improves system reliability by addressing identified Transmission Line Deficiency (TLD) projects deficiencies. address issues identified through New York State Electric & Gas (NYSEG)’s inspection • Upgrades aging transmission infrastructure to maintain programs, which flag transmission structures dependable service. and hardware needing repair or replacement due to age, wear, or non-compliant • Enhances resiliency during severe weather. clearances. • Supports regional electric demand by strengthening Proactively correcting these deficiencies transmission performance helps prevent outages, improves reliability, and supports NYSEG’s commitment to What to expect during construction: modernizing infrastructure and maintaining safe, dependable service. • Increased construction vehicles in the work areas, including daily traffic as crews travel between material staging area and work areas. TLD Program includes: • Replacing aging structures, upgrading • Traffic signs will be provided to indicate temporary hardware and conductors on lines such as detour and pedestrian flow. 115 kV, 34.5 kV, and 46 kV facilities, correcting clearance issues, and • Ensure public safety by avoiding project work zones performing vegetation management along and adhering to posted signage during construction work hours. identified segments • Service interruptions may occur, along with vegetation- • TLD projects also involve improving access management activities such as tree trimming or and restoring right-of-way areas to support clearing. safe construction activities and maintain reliable electric service TLD is a NYSEG Effort Delivering More Reliable Power A Stronger, More Powering Communities Built With and Reliable Grid across NY for Communities Strengthens reliability across Upgrading aging lines to meet More than 170 years of service increasing transmission load supporting New York all New York divisions requests communities Reduces outages and Reinforcing critical assets Over 4,500 miles of existing improves system resilience supporting rising energy transmission infrastructure during severe weather events demand and statewide growth across NY State Supports safer operations Powering healthcare facilities, Supporting reliable service, and long-term grid economies, and major environmental responsibility, performance statewide for manufacturers and the communities we serve customers