Skunk Works is convinced that their system—which will be the size of a jet engine—will be able to power everything, from spaceships to airplanes to vessels—and of course scale up to a much larger size. At the size of the ITER, it will be able to produce 10 times more energy, McGuire claims:
It's one of the reasons we think it is feasible for development and future economics. Ten times smaller is the key. But on the physics side, it still has to work, and one of the reasons we think our physics will work is that we've been able to make an inherently stable configuration. In our case, it is always in balance. So if you have less pressure, the plasma will be smaller and will always sit in this magnetic well.

The road ahead

But we all know that the road to the dream of clean, unlimited energy is paved with failed inventions. The situation here seems different. First, Lockheed Martin is not a crazy dude working in a garage. It's one of the world's largest aerospace and military companies.

McGuire knows that they are just starting now, but he claims the design is sound and they will advance quickly until its final implementation in just a decade:
We would like to get to a prototype in five generations. If we can meet our plan of doing a design-build-test generation every year, that will put us at about five years, and we've already shown we can do that in the lab. So it wouldn't be at full power, like a working concept reactor, but basically just showing that all the physics works.

Five years after that, they expect to have a fully operative model ready to go into full-scale production, capable of generating 100MW—enough to power a large cargo ship or a 80,000-home city—and measure 23 x 42 feet, so you "could put it on a semi-trailer, similar to a small gas turbine, put it on a pad, hook it up and can be running in a few weeks."
I really hope this works out