OATI delivers FERC 881 compliance and unlocks transmission capacity across three regions
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Entergy, three NextEra Energy operating companies, and some of Florida's transmission providers are using OATI webLineR™ to automate ambient adjusted ratings - turning a demanding compliance mandate into new transmission capacity for reliability, cost savings, and clean energy deployment. MINNEAPOLIS, Sept. 3, 2026 /PRNewswire/ -- OATI, a leading provider of mission-critical software for the energy industry, today announced continued expansion of OATI webLineR™, its FERC Order 881 compliance solution, across ISO/RTO regions. Three NextEra Energy operating companies, Entergy, and numerous transmission providers within Florida are calculating, managing, and exchanging ambient adjusted ratings (AARs) with their reliability coordinators and market operators using OATI webLineR™. Limited transmission capacity is one of the greatest drags on the energy transition, often forcing clean energy developers to wait years to bring new projects online. FERC Order 881 requires transmission owners/providers to utilize AARs - hourly ratings reflecting forecast weather conditions - in place of conservative fixed assumptions, potentially unlocking capacity that may exist on the system. Each transmission owner must calculate and submit a 10-day hourly rating forecast for every facility, update it every hour, and retain that data for five years. The scale is substantial: in MISO alone, more...
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