0001140361-15-030790 3 2 20150801 20150810 20150810 CALPINE CORP 0000916457 4911 770212977 DE 1231 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 7138302000 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 Koshkin Jeff 0001644377 3 34 001-12079 151041763 717 TEXAS AVENUE, SUITE 1000 HOUSTON TX 77002 3 1 doc1.xml FORM 3 EX-24.1 2 poaforjeffkoshkin.txt POWER OF ATTORNEY