Hyperion Power Generation, a startup building compact nuclear power reactor units that are “about the size of a typical backyard hot tub”, says commercial deployments could start as early as 2013. The release quotes the company’s CEO John “Grizz” Deal, who says the Santa Fe, New Mexico-based startup has advanced development of its device enough to be able to reach that goal. The company says it initially plans to make 4,000 units — each being able to generate 70 megawatts of heat energy, or 27 megawatts of electricity from a steam turbine. That’s the equivalent power for 20,000 homes. There’s also the possibility of linking devices that could produce more power.