Xcel Energy Inc. (NYSE: XEL) (“Xcel Energy”) today announced that it has filed a prospectus supplement under which it may offer and sell from time to time shares of its common stock having an aggregate gross sales price of up to $400,000,000 through an “at-the-market” offering program. The shares will be offered through Barclays Capital Inc., Merrill Lynch, Pierce, Fenner & Smith Incorporated and Morgan Stanley & Co. LLC as sales agents. These sales, if any, will be made pursuant to the terms of equity distribution agreements between Xcel Energy and each of the sales agents and may be made by means of ordinary brokers’ transactions on the New York Stock Exchange or otherwise at market prices prevailing at the time of sale, at prices related to the prevailing market prices or at negotiated prices, in block transactions, or as otherwise agreed upon by Xcel Energy and the sales agents. This news release does not constitute an offer to sell or the solicitation of an offer to buy any securities nor shall there be any sale of any securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. The offering of the common stock may be made only by means of a prospectus and related prospectus supplement. Copies of the prospectus for the offering may be obtained by contacting (i) Barclays Capital Inc., c/o Broadridge Financial Solutions, 1155 Long Island Ave., Edgewood, New York 11717, Email: firstname.lastname@example.org, Telephone: (888) 603-5847; (ii) BofA Merrill Lynch, 222 Broadway, New York, New York 10038, Attention: Prospectus Department, Email: email@example.com; or (iii) Morgan Stanley, 180 Varick Street, 2nd Floor, New York, New York 10014, Attention: Prospectus Department, Telephone: (866) 718-1649, Email: firstname.lastname@example.org. Xcel Energy (NYSE: XEL) is a major U.S. electricity and natural gas company that provides a comprehensive portfolio of energy-related products and services to 3.4 million electricity customers and 1.9 million natural gas customers through its regulated operating companies in eight Western and Midwestern states. Company headquarters are located in Minneapolis.