Nuclear Reactors: Small + Modular

Small Modular Reactor. Image from http://www.energy.gov/ne/nuclear-reactor-technologies/small-modular-nuclear-reactors

DOE

Small Modular Reactors (SMRs) are nuclear power plants that are smaller in size (300 MWe or less) than current generation base load plants (1,000 MWe or higher). These smaller, compact designs are factory-fabricated reactors that can be transported by truck or rail to a nuclear power site. SMRs will play an important role in addressing the energy security, economic and climate goals of the U.S. if they can be commercially deployed within the next decade….

Because of their smaller size, they also can use passive safety systems and be built underground to limit the dangers of radioactive leaks. The modular design could allow parts of the plant to be made in a factory to ensure consistent design and cheaper costs.

Tennessee Valley Authority (TVA) (see also TVA) is in a joint pilot project with the U.S. Department of Energy to help test the new technology. Dan Stout, senior manager of SMR technology at TVA, said working with DOE to test the new power plant “is part of TVA’s mission,” although he said any final decision will require that the power source is also cost effective. “We’re focused on providing an option that provides reliable, affordable and carbon-free energy, and so we want to pursue this early site permit to give us the option for possibly locating SMRs on the site for 10 to 20 years,” Stout said.

Excerpts from US Department of Energy

and Oak Ridge could take lead in new TVA nuclear design, but critics question secrecy, need

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