0000891618-02-001959 424B5 1 20020425 CALPINE CORP 0000916457 4911 770212977 DE 1231 424B5 33 333-76880 02620926 50 WEST SAN FERNANDO ST SAN JOSE CA 95113 4089955115 50 W SAN FERNANDO SUITE 500 SAN JOSE CA 95113 424B5 1 f80736b5e424b5.txt FORM 424B5