618 POWER GENERATION AND UTILIZATION

18.—Power Development Program of The Hydro-Electric Power Commission of Ontario, as at Dec. 31, 1958

System and Development Units In Service Capacity1 No. kw. Southern Ontario System— DeCew Falls (extension)—Niagara Region 1947 57,000 Stewartville—Madawaska River 1948 63,000 Des Joachims—Ottawa River 1950-51 372,000 Chenaux—Ottawa River 1950-51 117,000 Richard L. Hearn—Toronto 4 1951-53 400,000* 4 1959-60 800,000* J. Clark Keith—Windsor 4 1951-53 264,000* Otto Holden—Ottawa River 8 1952-53 210,000 Sir Adam Beck No. 2—Niagara River 16 1954-58 1,200,000* Pumping generating station 6 1957-58 170,000* Robert H. Saunders—St. Lawrence River 16 1958-59 940,000* Nuclear Power Demonstration—near Des Joachims Generating Station 1 1961 20,000* Lakeview—near Toronto 2 1961-62 600,000*

Northern Ontario Properties- Northeastern Division— George W. Rayner—Mississagi River 1950 47,000 Abitibi Canyon (extension)—Abitibi River 1959 45,000 Red Rock Falls—Mississagi River 1960-61 38,000 Otter Rapids—Abitibi River 1961-62 131,000 Northwestern Division— Ear Falls (extension)—English River 1948 6,000 Aguasabon—Aguasabon River 1948 44,000 Pine Portage—Nipigon River 1950-54 119,200 Manitou Falls—English River 1956-58 65,700 Caribou Falls—English River 1958 67,500 Whitedog Falls—Winnipeg River 1958 53,700 Cameron Falls (extension!—Nipigon River 1958 19,100 Alexander (extension)—Nipigon River 1958 11,300 Silver Falls—Kaministikwia River 1959 45,500 Thunder Bay—Fort William 1961 100,000*

1 Capacities quoted are dependable at time of system peak except those marked which are installed capacities.

19.—Resources of The Hydro-Electric Power Commission of Ontario Generated and Purchased (All Systems), December 1957 and 1958

Commission's Generating Stations Year and System Power Purchased Hydro-electric1 Thermal-electric1 kw. hp. kw. hp. kw. hp. December 1957— 2,967,400 3,977,748 616,000 825,737 591,000 792,225 Northern Ontario Properties— 297,400 398,660 1,800 2,413 1,200 1,609 366,000 490,617 3,300 4,424 3,639,800 4,867,925 617,800 828,159 595,590 798,258

December 1958— 3,722,400 4,989,812 616,000 825,737 592,000 793,566 Northern Ontario Properties— 297,400 398,660 1,800 2,413 1,200 1,609 528,600 708,579 1,700 2,279 Totals 4,548,190 6,097,951 617,899 828,159 594,900 797,154

1 Dependable peak capacity—the amount of power which resources can be expected to supply at the time of the system primary peak requirements, assuming that all units are available and that the supply of water is normal. This capacity will vary from time to time in accordance with changing conditions. The capacity of a source of purchased power is based on the terms of the purchase contract.