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): May 4, 2000 PLUG POWER INC. (Exact name of Registrant as specified in its charter) DELAWARE 00027527 22-3672377 (State or other jurisdiction (Commission File (I.R.S. Employer of incorporation) Number) Identification No.) 968 ALBANY-SHAKER ROAD LATHAM, NY 12110 (Address of principal executive offices and zip code) Registrant's telephone number, including area code: (518) 782-7700 Item 5. Other Events. ------------ On May 4, 2000, the Registrant issued a press release announcing first quarter results and product development update. A copy of the press release is attached as an Exhibit to this report on Form 8-K and is incorporated herein by reference in its entirety. Item 7. Financial Statements, Pro Forma Financial Information and Exhibits. ------------------------------------------------------------------ (c) Exhibits. Exhibit 99.1 - Press Release of Plug Power Inc. dated May 4, 2000. 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. PLUG POWER INC. Date: May 4, 2000 By: /s/ William H. Largent ---------------------- William H. Largent Chief Financial Officer (Principal Financial and Accounting Officer) EXHIBIT INDEX EXHIBIT NO. DESCRIPTION - ---------- ----------- Exhibit 99.1 Press release of Plug Power Inc. dated May 4, 2000