0000916457-01-000007 8-K 1 20010409 5 20010410 CALPINE CORP 0000916457 4911 770212977 DE 1231 8-K 34 001-12079 1598659 50 WEST SAN FERNANDO ST SAN JOSE CA 95113 4089955115 50 W SAN FERNANDO SUITE 500 SAN JOSE CA 95113 8-K 1 0001.txt CALPINE CORP. FORM 8-K PRESS RELEASE