"The company has been experimenting with small bits of thorium, creating a laser that heats water, produces steam and powers a mini turbine." This is the only line in the article about how it works and it doesn't make any sense. It certainly isn't a nuclear reactor. If they meant that thorium is used in the laser, what powers the laser?
The company website (http://www.laserpowersystems.com) certainly doesn't add any credibility.