/ SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT: APRIL 9, 1999 Registrant; State or Other Commission Jurisdiction of Incorporation; I.R.S. Employer File Number Address; and Telephone Number Identification No. 333-47925 Yorkshire Power Group Limited 84-1393785 (England & Wales) Wetherby Road Scarcroft Leeds LS14 3HS United Kingdom 011-44-113-289-2123 ITEM 8. CHANGE IN FISCAL YEAR On March 30, 1999 the Board of Directors of Yorkshire Power Group Limited ratified a proposal to change its fiscal year end from March 31 to December 31. A Transition Report for the transition period from March 31, 1999 to December 31, 1999 will be reported on Form 10-K. 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 thereunto duly authorized. YORKSHIRE POWER GROUP LIMITED (Registrant) BY: \s\ Armando A. Pena Armando A. Pena Chief Financial Officer and Director April 9, 1999