0001193125-15-026155 FWP 1 20150130 20150129 CALPINE CORP 0000916457 4911 770212977 DE 1231 FWP 34 333-197288 15560570 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 7138302000 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 CALPINE CORP 0000916457 4911 770212977 DE 1231 FWP 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 7138302000 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 FWP 1 d861836dfwp.htm FWP