0000891618-01-500472 S-3 4 20010430 CALPINE CORP 0000916457 4911 770212977 DE 1231 S-3 33 333-59786 1614924 50 WEST SAN FERNANDO ST SAN JOSE CA 95113 4089955115 50 W SAN FERNANDO SUITE 500 SAN JOSE CA 95113 S-3 1 f71926ors-3.txt FORM S-3 EX-4.2 2 f71926orex4-2.txt EXHIBIT 4.2 EX-5.1 3 f71926orex5-1.txt EXHIBIT 5.1 EX-23.1 4 f71926orex23-1.txt EXHIBIT 23.1