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: October 15, 1998 EASTERN EDISON COMPANY (Exact name of registrant as specified in this charter) Massachusetts 1-8480 04-1123095 (State or other jurisdiction of (Commission (I.R.S. Employer incorporation or organization) File Number) Identification No.) 750 W. Center Street, West Bridgewater, Massachusetts 02109 (Address of principal executive offices) (Zip Code) Item 5. Other Events. In a press release dated October 15, 1998, Eastern Utilities Associates (EUA) announced that its Montaup Electric Company subsidiary has agreed to sell its Somerset Station electric generating plant for $55 million to NRG Energy, Inc. Montaup is a direct subsidiary of Eastern Edison. Eastern Edison is a direct subsidiary of EUA. This sale is subject to federal and state regulatory approvals. Item 7. Financial Statements, Pro Forma Financial Information and Exhibits. Exhibit 99a Press Release dated October 15, 1998. SIGNATURE Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. EASTERN EDISON COMPANY (Registrant) By: /s/ John R. Stevens John R. Stevens President Date: October 15, 1998