0001140361-17-009157 4 1 20170222 20170224 20170224 CALPINE CORP 0000916457 4911 770212977 DE 1231 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 7138302000 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 Hill Thad 0001351761 4 34 001-12079 17637920 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 4 1 doc1.xml FORM 4