Extreme Weather, Cyber and Physical Security Continue to Create Reliability Challenges

ATLANTA – NERC’s 2023 State of Reliability (SOR) finds that overall, the North American bulk power system (BPS) remains highly reliable and resilient. However, extreme weather events continue to pose the greatest risk to its reliability and stability. Transmission system reliability has improved significantly for the fifth consecutive year, and the rate of protection system misoperations also continues to improve. Conventional generation, challenged by more frequent extreme weather, experienced its highest level of unavailability overall since NE​RC began gathering generator availability data in 2​013. In addition, cyber security compromises and increased physical attacks on critical infrastructure in the latter part of 2022 reinforce the need for further development and adaptation of reliability standards and guidelines.

Full Announcement ​2023 SOR Overview | 2023 SOR Technical Assessment | 2023 SOR Infographic | 2023 SOR Video

Posted On: 06/22/2023