0000916457-19-000005 15-12B 2 20190125 20190124 20190125 CALPINE CORP 0000916457 4911 770212977 DE 1231 15-12B 34 001-12079 19540848 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 7138302000 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 15-12B 1 cpn_form15x2019.htm CALPINE CORPORATION FORM 15-12B GRAPHIC 2 calpinelogoa02.jpg CALPINE LOGO