9 Notable Facts About the World’s First Nuclear Power Plant - EBR-I

Pushing limits and forcing change. Nuclear energy development roared onto the scene in the mid-1940s. So, while some were out “cutting a rug,” engineers were splitting atoms to find new ways to generate clean and efficient energy.

The production of atomic energy has come a long way since then, and is now one of the most reliableenergy sources in America.

But how did it all start?

Let’s take a look back at the world’s first nuclear power plant located in Idaho’s vast desert landscape.

Here are 9 notable facts about Experimental Breeder Reactor-I (EBR-I), the power plant that pioneered nuclear development:

1. EBR-I was a liquid metal-cooled fast reactor designed to demonstrate that it could create more fuel than it consumed. Not only do liquid metal coolants like sodium – or the sodium-potassium alloy used in EBR-I – transfer heat better than the light-water reactors in the current fleet, but they also have a more sustainable fuel cycle over a longer period of time.

2. On December 20, 1951, EBR-I became the first power plant to produce usable electricity through atomic fission. It powered four 200-watt lightbulbs and eventually generated enough electricity to light the entire facility.

3. While EBR-I is known as the first to produce usable electricity, other reactors built on its success. In 1954, Russia’s Obninsk APS-1 provided 5 megawatts of electricity to the power grid. Back in Idaho, Borax-III, a boiling water reactor plant, generated enough electricity to power the small nearby town of Arco in 1955.

4. During a coolant flow test, EBR-I suffered an unexpected partial core meltdown. This event allowed scientists to better understand the thermal capacity of the materials used for testing. The experimentation heavily contributed to the advancement of nuclear technology.

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