NERC Tag - Future of E-Tag

Future of E-Tag

OASIS primarily deals with the purchase and availability of transmission from individual transmission providers with a forward-looking time frame, while E-Tag is focused on real-time scheduling and power flow management across multiple systems. Nonetheless, the FERC-derived OASIS applications and NERC-derived E-Tag applications are somewhat duplicative. FERC's plan for the eventual introduction of OASIS Phase 2 envisions a combined platform to post transmission offerings, allow transmission purchases, and facilitate scheduling and flow management, effectively merging the essential functions of E-Tag and OASIS. However, there has been very little activity to move towards OASIS Phase 2 since the introduction of E-Tag 1.7 in 2002, and the future remains unclear. As both systems have increased in complexity over time, the difficulties in merging the two independently-evolved systems have likewise also increased.