0000916457-17-000122 DEFA14A 3 20170822 20170821 20170822 CALPINE CORP 0000916457 4911 770212977 DE 1231 DEFA14A 34 001-12079 171043847 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 7138302000 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 DEFA14A 1 cpn8k-8212017.htm 8-K MERGER AGREEMENT EX-2.1 2 exhibit21-mergeragreement.htm EXHIBIT 2.1 MERGER AGREEMENT GRAPHIC 3 cpnimage1a04.jpg