The World Behind Your Light Switch (1966)
27:32
Intertie (1969)
20:25
Highline: Pacific Northwest's High-Voltage Transmission System (1950)
23:24
25,000 Volts Under the Sea: Laying of the San Juan Cable (1952)
28:33
Stringing and Sagging a High-Voltage Transmission Line (1950)
28:37
River of Power (1987)
21:04
The Columbia: America's Greatest Power Stream (1949)
11:17
Value of the River - Transmission
28:48