EXHIBIT 21.1 LIST OF SIGNIFICANT SUBSIDIARIES OF THE COMPANY, THE STATE OR JURISDICTION OF INCORPORATION OR ORGANIZATION OF EACH, AND THE NAMES UNDER WHICH SUCH SUBSIDIARIES DO BUSINESS STATE/JURISDICTION OF INCORPORATION OR NAME OF SIGNIFICANT SUBSIDIARY ORGANIZATION - --------------------------------------- ---------------------- Brady Power Partners Nevada Ormat Systems Ltd. Israel Ormat International, Inc. Delaware Ormat Nevada, Inc. Delaware Ormat Funding Corp. Delaware OrCal Geothermal, Inc. Delaware OrHeber 1, Inc. Delaware ORMESA LLC Delaware Ormat Holding Corp. Cayman Islands Heber Field Company California Second Imperial Geothermal Company L.P. California Heber Geothermal Company California Mammoth Pacific L.P. California OrPower 4, Inc. Cayman Islands Ormat Momotombo Power Company Cayman Islands Orleyte Company Cayman Islands Ormat-Leyte Co. Ltd. Philippines OrMammoth Inc. Delaware Ormat Pacific Inc. Delaware Oreg 1 Inc. Delaware Puna Geothermal Venture L.P. Hawaii Steamboat Development Corp. Delaware
