Overview of TVA

TVA's threefold mission includes power production, environmental stewardship, and economic development. Learn about TVA's services, its customers and partners, and its successes in meeting the challenges of those three areas of responsibility by clicking on the tabs at the top of the box below.

Power System Statistics

At September 30 or for the years ended September 30, as appropriate (in millions)	2005	2004	Percent Change
System input (millions of kilowatt-hours)
System generation
Hydro, including pumped storage	15,723	13,916	13
Fossil	98,404	94,648	4
Nuclear	45,156	46,003	(2)
Combustion turbine	595	278	114
Green power	18	18	-
Total net generation	159,896	154,863	3
Purchased	16,637	15,148	10
Total system input	176,533	170,011	4

System output (millions of kilowatt-hours)
Sales
Municipalities and cooperatives	136,640	133,161	3
Industries directly served	30,872	29,344	5
Federal agencies and other	3,986	3,353	19
Total sales	171,498	165,858	3
Other	1,806	1,378	31
Losses	3,229	2,775	16
Total system output	176,533	170,011	4

Winter net dependable capacity (megawatts)	33,981	33,189	2
System peak load (megawatts) – summer	31,924	29,966	7
System peak load (megawatts) – winter	29,278	27,997	5
Annual load factor (percent)	62.4	64.2	(3)
Number of employees at September 30	12,703	12,742	-
Percent winter dependable capacity by fuel source
Fossil	49%	50%	(2)
Nuclear	19%	19%	-
Hydro	17%	16%	6
Combustion turbine	15%	15%	-


In the 2004 Information Statement and Annual Report, TVA began presenting consolidated financial statements that include both power and nonpower activities.