1 ================================================================================ SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) MARCH 23, 2001 -------------- NRG ENERGY, INC. ------------------------------------------------------ (Exact name of registrant as specified in its charter) DELAWARE ---------------------------------------------- (State or other jurisdiction of incorporation) 000-25569 41-1724239 ------------------------ --------------------------------- (Commission File Number) (IRS Employer Identification No.) 901 MARQUETTE AVENUE, SUITE 2300 MINNEAPOLIS, MN 55402 - ---------------------------------------- --------------------- (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code 612-373-5300 ------------ (Former name or former address, if changed since last report) ================================================================================

2 ITEM 5. OTHER EVENTS On March 23, 2001, NRG Energy Inc. announced its appointment of W. Mark Hart to the position of Senior Vice President, NRG Energy and President, NRG Europe and Latin America. Mr. Hart will oversee NRG Energy's European and Latin American portfolio as well as business development in those regions. The press release reporting NRG Energy's appointment of W. Mark Hart to the position of Senior Vice President is filed with this Form 8-K as Exhibit 99.4 See "Item 7. Exhibits." Item 7. Exhibits. The following exhibits are filed with this report on Form 8-K: Exhibit No. Description - ----------- ----------- 99.4 Press release March 23, 2001, of NRG Energy, Inc. announcing the appointment of W. Mark Hart as Senior Vice President, NRG Energy and President, NRG Europe and Latin America.

3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. NRG Energy, Inc. (Registrant) By /s/ Leonard A. Bluhm -------------------------------------- Leonard A. Bluhm Executive Vice President and Chief Financial Officer (Principal Financial Officer) Dated: April 03, 2001

1 EXHIBIT 99.4 [NRG LOGO] NEWS RELEASE FOR IMMEDIATE RELEASE NRG ENERGY NAMES W. MARK HART PRESIDENT, EUROPE AND LATIN AMERICA MINNEAPOLIS (MARCH 23, 2001) - NRG Energy, Inc. (NYSE: NRG) announced it has appointed W. Mark Hart to the position of senior vice president, NRG Energy and president, NRG Europe and Latin America. In his new position, Hart will oversee NRG's European and Latin American portfolio as well as business development in those regions. "Mark Hart brings to NRG his international and domestic business experience as well as nearly 30 years experience in the mining industry," said David H. Peterson, chairman, president and chief executive officer of NRG. "He has the experience and solid leadership skills that will help NRG meet the challenges of a fast-growing, performance-driven organization." Prior to joining NRG, Hart was vice president of Canadian Operations at Newmont Mining Company and vice president of Business Processes and Operations for Europe, South America and Asia. Before that he managed mining operations, engineering and machinery with Cyprus Amax Minerals Company where he served as senior vice president of U.S. Operations and president and chief executive officer of Australia. He has also worked for American Electric Power Fuel Supply, Standard Oil Company's minerals division and Consolidated Coal Company. Hart has a Ph.D. in Mining Engineering/Environmental Management from the Colorado School of Mines, and an MBA from the University of Phoenix, as well as a master's of science in Mining Engineering/Geotechnical Engineering from West Virginia University. Hart earned his bachelor of arts degree in Liberal Arts, and two bachelor of science degrees, in Mechanical Engineering/Electrical Engineering and Mining Engineering Technology, from Fairmont State College. NRG Energy is a leading global energy company primarily engaged in the acquisition, development, construction, ownership and operation of power generation facilities. NRG owns all or a portion of 66 power generation projects and its net

2 ownership interest in these projects is 16,704 MW. The company's operations utilize such diverse fuel sources as natural gas, oil, coal and coal seam methane, biomass, landfill gas, and hydro, as well as refuse-derived fuel. More information on NRG Energy is available at www.nrgenergy.com. # # # Contacts: Meredith Moore Media Relations 612.373.8892 meredith.moore@nrgenergy.com Rick Huckle Investor Relations 612.373.8900 rick.huckle@nrgenergy.com