UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ______________________ Form 10-K 1-31447 CenterPoint Energy, Inc. 74-0694415 (a Texas corporation) 1111 Louisiana Houston, Texas 77002 (713) 207-1111 1-3187 CenterPoint Energy Houston Electric, LLC 22-3865106 (a Texas limited liability company) 1111 Louisiana Houston, Texas 77002 (713) 207-1111 (Mark One) ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2021 OR ...