Entergy Arkansas files response to MISO order

Little Rock, Ark., August 24, 2012 — Entergy Arkansas, Inc. filed testimony with the Arkansas Public Service Commission affirming its commitment to join the Midwest Independent Transmission System Operator or MISO. Testimony responding to the commission's August 3 order is expected to be filed by MISO in short order.

The commission identified 19 conditions that Entergy Arkansas and MISO must satisfy for it to grant conditional approval of the company's move to MISO. All 19 are addressed in testimony submitted by Hugh McDonald, president and chief executive officer of Entergy Arkansas, Inc. Extensive analysis completed by Entergy and confirmed by outside consultants has shown that joining MISO is the right choice for the company and its customers.

The deadline for moving to a regional transmission organization is driven by Entergy Arkansas' 2005 decision to exit the current power pooling arrangement with the other Entergy utilities. The company must have an alternate process in place to provide electric service by December 19, 2013.

MISO is the oldest and one of the largest regional transmission organizations in the country. Joining MISO is projected to save Entergy Arkansas' customers a quarter of a billion dollars in the first decade of operations alone.

Entergy Arkansas, Inc. provides electricity to 700,000 customers in 63 counties. It is a unit of Entergy Corp. Entergy Corp. is an integrated energy company engaged primarily in electric power production and retail distribution operations.

Entergy owns and operates power plants with about 30,000 MW of electric generating capacity, including more than 10,000 MW of nuclear power, making it one of the nation's leading nuclear generators. Entergy delivers electricity to 2.8 million utility customers in Arkansas, Louisiana, Mississippi and Texas. Entergy has annual revenues of more than $11 billion and about 15,000 employees.

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