An advanced nuclear reactor technology park is hoped for the 935-acre Clinch River site. Image: TVA
The Tennessee Valley Authority’s board of directors has given the go-ahead for a program that will explore the development and potential deployment of small modular reactors as part of the utility’s decarbonization strategy.
What role will nuclear play in meeting clean energy goals?
The 2021 ANS Annual Meeting brought together three leading chief executive officers from the nuclear industry on June 16 for a discussion centered on the future role of nuclear energy deployment and the challenges of portfolio management during a time of net-zero carbon goals.
TerraPower and GE Hitachi Nuclear Energy jointly developed the sodium-cooled Natrium reactor with the turbine hall, nitrate heat storage tanks, and cooling towers separated from the reactor at the back of the site.
The viability of nuclear power ultimately depends on economics. Safety is a requirement, but it does not determine whether a reactor will be deployed. The most economical reactor maximizes revenue while minimizing costs. The lowest-cost reactor is not necessarily the most economical reactor. Different markets impose different requirements on reactors. If the capital cost of Reactor A is 50 percent more than Reactor B but has characteristics that double the revenue, the most economical reactor is Reactor A.
The most important factor is an efficient supply chain, including on-site construction practices. This is the basis for the low capital cost of light water reactors from China and South Korea. The design of the reactor can significantly affect capital cost through its impact on the supply chain. The question is, how can advanced reactors boost revenue and reduce costs?