Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANTS A. Vulcan/BN Geothermal Power Company, a Nevada general partnership, and VPC Geothermal LLC, a Delaware limited liability company, are subsidiaries of Vulcan Power Company. B. Vulcan/BN Geothermal Power Company is a subsidiary of VPC Geothermal LLC. C. Leathers, L.P., a California limited partnership, Del Ranch, L.P., a California limited partnership, Elmore, L.P., a California limited partnership, San Felipe Energy Company, a California corporation, Conejo Energy Company, a California corporation, and Niguel Energy Company, a California corporation, are subsidiaries of CalEnergy Operating Corporation. D. Leathers, L.P. is a subsidiary of San Felipe Energy Company. E. Elmore, L.P. is a subsidiary of Niguel Energy Company. F. Del Ranch, L.P. is a subsidiary of Conejo Energy Company. G. Salton Sea Power Generation L.P., a California limited partnership, is a subsidiary of Salton Sea Brine Processing L.P., a California limited partnership. H. CalEnergy Minerals LLC, a Delaware limited liability company, is a subsidiary of Salton Sea Minerals Corp., a Delaware corporation. I. Salton Sea Power L.L.C., a Delaware limited liability company, and CE Turbo LLC, a Delaware limited liability company, are subsidiaries of CE Salton Sea, Inc., a Delaware corporation.