MGE Energy(MGEE) - 2018 Q4 - Annual Report

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K [X] Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended: December 31, 2018 [ ] Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from _______________ to _______________ | Commission | Name of Registrant, State of Incorporation, Address | IRS Employer | | --- | --- | --- | | File No. | of Principal Executi ...