English subtitles for clip: File:PWR nuclear power plant animation.ogv

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The process of creating electricity
using nuclear power

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begins with splitting of uranium atoms
in the reactor.

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This process called fission,
produces heat.

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In a pressurized water reactor,

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the heat from the water
surrounding the nuclear fuel

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is kept under pressure
to prevent it from boiling.

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The hot water is piped from the reactor
vessel to a steam generator,

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where it transfers its heat to boil water
and make steam in a second system.

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After transferring its energy,

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the water is pumped back
to the reactor vessel to be reused.

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The non-radioactive steam
from the steam generator

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spins turbines that drive the generator
to produce electricity.

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After the steam is used in the turbines
it is drawn into a condenser,

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where it is cooled
and condensed back in the water

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and pumped back to the steam generator
to be heated and reused.