0000916457-13-000024 8-K 3 20130502 2.02 9.01 20130502 20130502 CALPINE CORP 0000916457 4911 770212977 DE 1231 8-K 34 001-12079 13805458 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 7138302000 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 8-K 1 cpn_8kxq1x2013.htm 8-K - FIRST QUARTER 2013 EARNINGS RELEASE EX-99.1 2 cpn_8kxexhibit991xq1x2013.htm EXHIBIT 99.1 - CALPINE CORPORATION PRESS RELEASE DATED MAY 2, 2013 GRAPHIC 3 calpineimagea02a01.jpg CALPINE LOGO