Return
to TVA Newsroom
|
Media
Downloads
TVA
logos
Executive photos
TVA site photos
Generating facility diagrams
Download Instructions
To
download any of the files, follow these instructions:
For Windows:
right click and choose “Save
Link As”
For Macintosh: hit Control-Click and choose the appropriate Save option
TVA
Logos
Before
downloading any of the logos available on this page, please read
the TVA
Logo Usage Guidelines (PDF, 449 kb). These
guidelines must be followed to ensure proper logo usage.
For
Windows: ibmlogos.zip (Windows Metafile, 14 kb)
For
Macintosh: tvalogos.sea.hqx (EPS, 587 kb)
Executive
Photos
Black-and-white head shots of the following TVA executives are available
for downloading (tiff files, approx. 500 kb in size).
TVA
site photos
These are photographs of TVA power generation sites (tiff
files, approx. 5 mb).
Generating
facility diagrams
These diagrams illustrate how TVA power plants work (these
are compressed files that need to be uncompressed).
The turbine burns either natural gas or oil.
Fuel is mixed with compressed air in the combustion chamber and
burned. High-pressure
combustion gases spin the turbine, which drives the generator.
Macintosh (.sit) | Windows
(.zip) |
|
Water from the reservoir rushes through the penstock
into the powerhouse. The water spins the turbine, which drives
the generator.
Inside the generator is a large electromagnet that spins within a
coil of wire, producing electricity.
Macintosh (.sit) | Windows
(.zip) |
|
During periods of low power demand, the
pump-turbine pumps water up into the mountaintop reservoir. During
periods of high demand
water from the reservoir flows down through the mountain to the power
plant, generating electricity.
Macintosh (.sit) | Windows
(.zip) |
|
Water is heated through the controlled
splitting of uranium atoms in the reactor core and turns to steam.
Pumps force the water
through the reactor at top speed, maximizing steam production. Steam
drives the turbines that turn the generator that makes electricity.
Cooling water from the river condenses the steam back into water.
The river water is either discharged directly back to the river
or cooled
in the cooling towers and reused in the plant.
Macintosh (.sit) | Windows
(.zip) |
|
Water is heated through the
splitting of uranium atoms in the reactor core. The water, held
under high pressure to keep it from
boiling, produces steam by transferring heat to a secondary source
of water. The steam is used to generate electricity. Cooling water
from the river condenses the steam back into water. The river water
is either discharged directly back to the river or cooled in the
towers and reused in the plant.
Macintosh (.sit) | Windows
(.zip) |
|
Coal burned in the
boiler heats water to produce steam. The steam spins the turbine,
which drives the generator.
Macintosh (.sit) | Windows
(.zip) |
|
Photovoltaic (PV) systems use semiconductor
cells that convert sunlight directly into electricity. Direct
current from the
PV cells, which are arrayed in flat panels, flows to inverters that
change it to alternating current.
Macintosh (.sit) | Windows
(.zip) |
|
A turbine and gear box
are mounted in a casing called a nacelle, and rotor blades are
attached to the turbine. The turbine
localizes the energy of the turning rotor blades in a single rotating
shaft that generates electricity.
Macintosh (.sit) | Windows
(.zip) |
|
Pipes collect methane gas produced by
decaying waste, and the gas is burned to generate electricity.
Macintosh (.sit) | Windows
(.zip) |
|
|
865-632-6000
For calls outside normal business hours, the person on duty will be
paged.
|