0001140361-14-034979 4 1 20140905 20140905 20140905 CALPINE CORP 0000916457 4911 770212977 DE 1231 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 7138302000 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 MILLER W. THADDEUS 0001442784 4 34 001-12079 141086986 717 TEXAS AVENUE, SUITE 1000 HOUSTON TX 77002 4 1 doc1.xml FORM 4