Exhibit 21.1 CONSOLIDATED HYDRO, INC. INDEX "2" OF CORPORATE SUBSIDIARIES & PARTNERSHIPS As of 09/23/96 STATE OF INCORP/ QUALIFIED TO DO CORPORATION/PARTNERSHIP ORGANIZATION BUSINESS IN 1. Aircraft Management, Inc. Connecticut ---- 2. Aquenergy Systems, Inc. South Carolina Virginia 3. Asotin Hydro Company, Inc. Delaware ---- 4. Aziscohos Hydro Company, Inc. Delaware Maine 5. Bear Creek Hydro California L. P. ---- (G.P.: TKO Power, Inc.) 6. Beaver Falls Water Power Company Pennsylvania ---- 7. Beaver Valley Holdings Ltd. Pennsylvania ---- 8. Beaver Valley Power Company Pennsylvania ---- 9. Bedard Electrics, Inc. New York ---- 10. Black River Hydro Associates New York L.P. ---- (G.P.: (Cataldo) Hydro Power Associates) 11. Boott Hydropower, Inc. Massachusetts ---- 12. BP Hydro Associates Idaho General Partn. ---- (G.P.: CHI-Idaho, Inc. & CHI-Magic Valley, Inc.) 13. BP Hydro Finance Partnership Utah General Partn. ---- (G.P.: Fulcrum, Inc. & BP Hydro Associates) 14. Cascade Pumped Storage, Inc. Delaware Washington 15. Cascade Energy Limited Partnership Delaware L.P. ---- (G.P.: Cascade Pumped Storage, Inc.) Cataldo Hydro Power Associates (See Hydro Power Associates) 16. CHI Acquisitions, Inc. Delaware ---- 17. CHI Acquisitions II, Inc. Delaware ---- 18. CHI Argentina de Inversiones Argentina ---- (no corporate book) 19. CHI Argentina USA, Inc. Delaware ---- 20. CHI-Black Canyon, Inc. Delaware Idaho 21. CHI-Felt Dam, Inc. Delaware Idaho 22. CHI Finance, Inc. Delaware ---- 23. CHI Highfalls, Inc. Delaware New York 24. CHI Hydroelectric Company, Inc. Newfoundland ---- (no corporate book) 25. CHI-Idaho, Inc. Delaware Idaho 26. CHI-Magic Valley, Inc. Delaware Idaho 27. CHI Mountain States Operations, Inc. Delaware California, Idaho 28. CHI Operations, Inc. Delaware Maine & New Hampshire 29. CHI Patagonia, Inc. Delaware ---- 30. CHI Patagonia Investments, L.P. Delaware (G.P.: CHI Patagonia, Inc. - L.P.: Edward Stern) 31. CHI Philippines, Inc. Delaware ---- 32. CHI-Pigeon Cove, Inc. Delaware Idaho 33. CHI Power, Inc. Delaware Texas 34. CHI Power Marketing, Inc. Delaware ---- 35. CHI Universal, Inc. Delaware Maine 36. CHI West, Inc. Delaware California, Oregon & Washington 37. CHI Western Operations, Inc. Delaware California, Washington, Idaho & Oregon 38. Coneross Power Corporation South Carolina ---- 39. Consolidated Hydro, Inc. Delaware Connecticut 40. Consolidated Hydro Maine, Inc. Delaware Maine & New Hampshire 41. Consolidated Hydro Mountain States, Inc. Delaware Idaho 42. Consolidated Hydro New Hampshire, Inc. Delaware New Hampshire 43. Consolidated Hydro New York, Inc. Delaware New York 44. Consolidated Hydro Southeast, Inc. Delaware So. Carolina 45. Consolidated Hydro Vermont, Inc. Delaware Vermont 46. Consolidated Pumped Storage, Delaware Arkansas Arkansas, Inc. 47. Consolidated Pumped Storage, Inc. Delaware Connecticut 48. Copenhagen Associates New York G.P. ---- 49. Crosby Drive Investments, Inc. Massachusetts ---- 50. Eagle & Phenix Hydro Company, Inc. Delaware Georgia & Alabama 51. Echo Summit Hydro Company, Inc. Delaware California 52. Essex Company Massachusetts ---- 53. Fulcrum, Inc. Idaho ---- 54. The Great Dam Corporation Massachusetts ---- 55. Highfalls Hydro Company, Inc. Delaware New York 56. Hillsborough Hydroelectric Delaware L.P. New Hampshire Limited Partnership (G.P.: Hosiery Mill Hydro Company, Inc.) 57. Hosiery Mill Hydro Company, Inc. Delaware New Hampshire 58. Hydro Development Group Inc. New York ---- 59. Hydrodev, Inc. (no corp. book) Quebec ---- 60. Hydrodev Limited Partnership Quebec L.P. ---- 61. Hydro Energies Corporation Vermont ---- 62. (Cataldo) Hydro Power Associates New York G.P. ---- (no notebook) 63. Iroquorp Acquisition, Inc. New York ---- 64. Iroquorp Ltd. New York ---- 65. Iroquorp Steel New York ---- 66. Joseph Hydro Company, Inc. Delaware Oregon 67. Kings River Hydro Company, Inc. Delaware California 68. Kinneytown Hydro Company, Inc. Delaware Connecticut 69. LaChute Hydro Company, Inc. Delaware New York 70. LaComb Hydro Limited Partnership Oregon L.P. ---- (G.P.: TKO Power, Inc.) 71. Lawrence Hydroelectric Associates Massachusetts L.P. ---- (G.P.: Essex Company L.P.: Crosby Drive Investments, Inc., owned by Asotin Hydro Company, Inc.) 72. Les Developpements Hydroelectriques Delaware Quebec, Canada CHI, Inc. 73. Les Developpements Hydroelectriques Quebec ---- CHI International, Inc. (no corporate book) 74. Littlefield Hydro Company Maine L.P. ---- Limited Partnership (G.P.: Littlefield Hydro Company, Inc.) 75. Littlefield Hydro Company, Inc. Delaware Maine 76. Littleville Power Company Massachusetts ---- 77. Lower Saranac Corporation New York ---- 78. Lower Saranac Hydro Partners Delaware L.P. ---- Limited Partnership (G.P.: Lower Saranac Corporation) 79. Mill Shoals Hydro Company, Inc. Delaware Georgia, North Carolina, and South Carolina 80. Minnewawa Hydro Company, Inc. Delaware ---- 81. Missisquoi Associates California G.P. (G.P.: Sheldon Hydro Ass. L.P. & Sheldon Vermont Hydro Co., Inc. 82. North Canal Waterworks Massachusetts Business Trust 83. Notch Butte Hydro Company, Inc. Delaware Idaho 84. Ottauquechee Hydro Company Inc. Delaware Vermont 85. Pelzer Hydro Company, Inc. Delaware South Carolina 86. Phoenix Hydro Company, Inc. Delaware ---- 87. Pioneer Hydro Company, Inc. Delaware Massachusetts 88. Prather Ranch Hydro California L.P. ---- (G.P.: TKO Power, Inc.) 89. Pyrites Associates New York G.P. ---- 90. River Mountain Limited Partnership Delaware L.P. Arkansas (G.P.: Consolidated Pumped Storage Arkansas, Inc.) 91. Schoolfield Hydro Company, Inc. Delaware ---- 92. Scotts Flat Hydro California L.P. ---- (G.P.: TKO Power, Inc.) 93. Sheldon Springs Hydro Associates Delaware L.P. ---- Limited Parnership (G.P.-Sheldon Vermont Hydro Company, Inc.) Sheldon Springs Power Company Merged into Sheldon Vermont Hydro Company, Inc.) 94. Sheldon Vermont Hydro Company, Inc. Delaware Vermont 95. Slate Creek Hydro Company, Inc. Delaware California 96. Slate Creek Hydro Associates California L.P. ---- Limited Partnership (G.P.: Slate Creek Hydro Company, Inc.) 97. SOCAL Energy Limited Partnership Delaware L.P. California (G.P.: SOCAL Pumped Storage, Inc.) 98. SOCAL Pumped Storage, Inc. Delaware California 99. Somersworth Hydro Company, Inc. Delaware New Hampshire 100. Summit Energy Limited Partnership Delaware L.P. Ohio (G.P.: Summit Energy Storage Inc. & L.P.: Consolidated Hydro, Inc.) 101. Summit Energy Storage Inc. Delaware Ohio & CT 102. Summit Finance, Inc. Delaware ---- 103. TKO Power, Inc. California Oregon 104. Triton Power Company New York G.P. (G.P.: CHI Highfall, Inc. & Highfalls Hydro Company, Inc.) 105. Twin Falls Hydro Associates, L.P. Washington L.P. ---- 106. Twin Falls Hydro Company, Inc. Delaware Washington 107. Ware Hydro Company, Inc. Delaware Massachusetts 108. Willimantic Hydro Company, Inc. Delaware Connecticut 109. Willimantic Power Corporation Connecticut ----