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Enhancing Reliability and Load Management in the Acadiana Load Pocket: A 2002-2009 Overview

This report outlines the growth and changes in generation dispatch in the Acadiana Load Pocket from 2002 to 2009, highlighting the impact of Hurricane Lili on transmission line ratings and the construction of the Wells Substation in 2005. It discusses the collaboration between Cleco, Entergy, and LUS to address reliability concerns and reduce transmission loading relief (TLR) events. The planned upgrades aim to bolster system resilience, economic benefits through fuel cost savings, and improved maintenance flexibility, ensuring consistent service even during peak conditions.

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Enhancing Reliability and Load Management in the Acadiana Load Pocket: A 2002-2009 Overview

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  1. Acadiana Load PocketProject

  2. Summer of 2002 load growth, changes to generation dispatch in the Acadiana Load Pocket (ALP) and reduced ratings on lines which were damaged during Hurricane Lili result in TLR’s with in the ALP Summer of 2005 Wells Substation was built which provided an additional source to the ALP and provided more import capability into the ALP Summer of 2007 Company specific imports are established which reduce the number of TLR level 5’s Project Background

  3. SPP coordinates a joint planning effort with Cleco, Entergy and LUS Group evaluates multiple options to fix reliability concerns and provide possible economic benefits In January 2009 Cleco, Entergy, LUS reach agreement on a project to be built with each party having some responsibility for the construction. Project Background Continued

  4. Difficult to perform maintenance on transmission system even during off peak conditions (N-2) Catastrophic loss of Teche 3 Operationally the configuration is N-1,G-1 Rolling blackouts within the ALP Voltage concerns 2012 N-1 Summer Peak overloads with all generation in the ALP online. Rolling blackouts within the ALP. ALP Reliability Concerns

  5. ALP Project

  6. Plans the ALP to N-1, G-1 which will prevent load shed in the event of a extended outage on Teche 3 or Bonin 3. Creates additional 230 kV sources into the ALP which will provide maintenance and operational flexibility. Reliability Benefits

  7. Majority of economic benefit will be in fuel cost savings for Cleco and LUS who currently have must run requirements on generation within the ALP during certain times of the year. Economic Benefits

  8. Construction Time line

  9. Construction Time line

  10. Construction Time line

  11. Construction Time line

  12. Construction Time line

  13. Questions

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