and the non-utility nuclear segment. The U.S. utility segment provides retail electricity services to approximately 2.9 million customers in Arkansas, Louisiana, Mississippi, and Texas. The non-utility nuclear segment owns and operates a total of six nuclear units, and provided support services to one: Michigan – Palisades Nuclear Generating Station (scheduled to permanently close in spring of 2022) Arkansas – Arkansas Nuclear One Units 1 and 2 Louisiana – River Bend Nuclear Generating Station and Waterford Nuclear Generating Station Mississippi – Grand Gulf Nuclear Generating Station Nebraska – support services for the Cooper Nuclear Station through 2014, terminated in 2022. The company's nuclear division is headquartered in Jackson, Mississippi. Entergy operates more than 40 plants using natural gas, nuclear, coal, oil and hydroelectric power with approximately 30,000 megawatts of electric generating capacity to serve its 2.9 million customers in the Gulf South. Its extensive transmission system carries approximately 30,000 megawatts of power across more than of interconnected lines within a area. Entergy is the only U.S. utility to make the Dow Jones Sustainability Index (DJSI) nine years in a row. The DJSI is a listing of the companies whose overall environmental, social and economic sustainability performance scores were in the top 10 percent for their sector. Entergy was named in 2008 to Forbes list of America's Most Trustworthy Companies, a ranking based on corporate governance practices and accounting transparency. On February 24, 2010, the Vermont Senate voted to prevent the Vermont Public Service Board from issuing the necessary certificate that would allow for the Vermont Yankee plant to have its license renewed for another 20 years. The vote will not affect current operation of the plant, and the issue could be revisited by the legislature in either a special session later in 2010 or in its next regular session in 2011. Entergy Texas Entergy Texas operates as a wholly owned subsidiary. This was done to prepare the Texas side for de-regulation under Texas law but later Entergy notified the Texas PUC it would not be splitting the Texas side off as a de-regulated operation (to do so would cost billions). So the Texas side has remained connected to the rest of the Entergy network, though it has its own CEO and until 2012, was based where the former Gulf States Utilities was, in Beaumont, Texas. Entergy Texas has moved to The Woodlands, which is now larger population-wise than the Beaumont area.