Inflow into the system reservoirs averaged more than twice median flow during calendar year 1961, with only 2 months (January and February) less than median. Streamflow during 1962 has been approximately equal to median flow. Due to the abnormally high runoff during the past year, pool levels have stayed at abovenormal elevations even though the use of steam generation was held to an absolute minimum and great quantities of secondary energy were marketed during the year. Total net hydroelectric generation for calendar year 1961 was 2,403,340,000 kilowatt-hours with approximately 767,500,000 kilowatt-hours of excess energy being marketed. This was the maximum year of generation for the system.

Units 3 and 4 at the Table Rock hydroelectric plant were placed in commercial operation in August 1961, increasing the installed capacity of that project to 200,000 kilowatts. Units 5 and 6 at Bull Shoals were placed in commercial operation in January and February 1962, respectively, increasing the installed capacity of that hydroplant to 250,000 kilowatts. The installation of the final two units at Bull Shoals in 1963 will increase the installed capacity to 340,000 kilowatts. Total hydroelectric capacity being marketed by Southwestern Power Administration is now 791,000 kilowatts. Completion of projects now under construction will increase this total to 1,355,000 kilowatts by 1966.

Capacities and tentative online dates for power generating units in multiple-purpose projects under construction by the Corps of Engineers in the Southwestern Power Administration area

1 Units added to existing project in operation with 160,000 kilowatts (4 40,000-kilowatt units). Total installed capacity for 8 generating units will be 340,000 kilowatts.