Pint-Sized Power Plants

  • (Photo courtesy of Hyperion)

Most nuclear power plants are huge
multi-billion-dollar operations that take
ten years to build. But they can be much
smaller. Lester Graham reports on a company
that’s planning hot-tub sized reactors:

Transcript

Most nuclear power plants are huge
multi-billion-dollar operations that take
ten years to build. But they can be much
smaller. Lester Graham reports on a company
that’s planning hot-tub sized reactors:

It’s difficult to get political and financial backing for building big nuclear power plants.
But one company plans to build miniature nuclear reactors.

John Deal is the CEO of Hyperion.

He says the small reactor invented at the Los Alamos National Laboratory could be
useful for isolated areas. It could also be used by smaller cities to provide most of
their power needs.

“You might have a community of 20, 30, 40 thousand people and they can have their
own power plant. And then they might feed back their excess or draw down from
some centralized facility for when they’ve got power spikes or peak demand.”

There’s a lot of interest. But for right now Hyperion is not taking orders for the mini-
nukes from Western nations. Deal says Hyperion is first trying to bring power to
isolated areas in the developing world.

For The Environment Report, this is Lester Graham.

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Little Fish, Big Fish: Which to Keep?

The common practice of throwing the little ones back could be harming future fish populations. The Great Lakes Radio Consortium’s Christina Shockley reports:

Transcript

The common practice of throwing the little ones back could be harming future fish populations. The Great Lakes Radio Consortium’s Christina Shockley reports:


Anglers and commercial fisheries are often only allowed to take fish that are larger than a certain size. So the smaller fish are left to reproduce. And researchers say that means their offspring will also be smaller, and not as healthy.


David Conover is a marine scientist at Stony Brook University. He says the larger fish are vital to the overall health of their species.


“The eggs that these big, old females produce tend to be of higher quality. The egg diameters may be a little larger, the yolk that is supplied to the eggs seems to be more rich, the larvae hatch at a larger size, they have a higher survival.”


Conover says fish populations can be harmed in as little as three or four generations. And it can take much longer for a population to rebound – if it can at all.


He says possible solutions could include different rules that protect larger fish, and new limits on where fish can be harvested.


For the GLRC, I’m Christina Shockley.

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