0000916457-12-000057 DEFA14A 3 20120920 20120920 20120920 CALPINE CORP 0000916457 4911 770212977 DE 1231 DEFA14A 34 001-12079 121100948 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 7138302000 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 DEFA14A 1 cpn_8kxseptx2012xbondxoffe.htm 8-K SEPT 2012 BOND OFFERING ANNOUNCEMENT EX-99.1 2 exhibit991-bondofferannoun.htm PRESS RELEASE SEPT 2012 BOND OFFER ANNOUNCE GRAPHIC 3 calpinelogoa02.gif COMPANY LOGO