The Future of Nuclear Energy: Facts and Fiction Chapter II: What is known about Secondary Uranium Resources?

During 2009 nuclear power plants, with a capacity of 370 GWe, will produce roughly 14% of the worldwide electric energy. About 65000 tons of natural uranium equivalent are required to operate these reactors. For 15 years on average only 2/3 of this fuel is provided by the uranium mines and 1/3 comes from secondary resources. In this paper the situation concerning the secondary resources at the beginning of the year 2009 is presented. The data used are from the IAEA/NEA 2007 Red Book, “Uranium Resources, Production and Demand”, and from the World Nuclear Association (WNA). Our analysis shows that these civilian stocks will be essentially exhausted within the next 5 years. This coincides roughly with the year 2013, when the delivery of the 10000 tons of natural uranium equivalent from russian military stocks to the USA will end. As the majority of the remaining civilian stocks, about 30000 tons, are believed to be under the control of the US government and american companies, it seems rather unlikely that the USA will share their own strategic uranium reserves with other large nuclear energy users. All data indicate that a uranium supply shortage in many OECD countries can only be avoided if the remaining military uranium stocks from Russia and the USA, estimated to be roughly 500000 tons are made available to the other countries.

💡 Research Summary

The paper provides a quantitative snapshot of secondary uranium resources at the beginning of 2009, using data from the IAEA/NEA 2007 Red Book and the World Nuclear Association. At that time, nuclear power plants worldwide, with a combined capacity of 370 GWe, generated roughly 14 % of global electricity. Operating these reactors required about 65,000 tons of natural‑uranium equivalent per year. The authors note that, on average, two‑thirds of this demand (≈43,000 t) was met by newly mined uranium, while the remaining one‑third (≈22,000 t) came from secondary sources: re‑processed fuel, highly enriched uranium, military stockpiles (primarily Russian and U.S.), and civilian inventories.

The core argument centers on the imminent depletion of civilian secondary inventories. The paper estimates that civilian stocks amount to roughly 30,000 t, the bulk of which is controlled by the United States government and U.S. companies. Based on consumption trends, the authors project that these stocks will be essentially exhausted within five years, i.e., by around 2013. Coinciding with this timeline, the contractual delivery of 10,000 t of natural‑uranium equivalent from Russian military stockpiles to the United States is scheduled to end in 2013. The simultaneous loss of both civilian inventories and the Russian‑U.S. military supply would create a significant shortfall for many OECD nuclear energy users.

To avert such a shortage, the paper argues that the remaining military stockpiles held by Russia and the United States—estimated at roughly 500,000 t of natural‑uranium equivalent—must be made available to the broader market. The authors contend that without this additional supply, a supply‑demand gap would emerge, potentially jeopardizing the operation of existing reactors and delaying the commissioning of new plants.

While the analysis is grounded in reputable data sources, it rests on several critical assumptions. First, it assumes that primary uranium mining output will remain at 2009 levels, ignoring potential new mine developments or expansions that could increase supply. Second, the paper does not fully explore the capacity of re‑processing facilities or the market dynamics of highly enriched uranium, both of which could augment secondary supplies. Third, geopolitical considerations—particularly the willingness of the United States and Russia to share strategic military stockpiles—are treated as static, despite the possibility of diplomatic negotiations or policy shifts.

The authors also do not address alternative risk‑mitigation strategies such as the creation of multinational strategic reserves, increased investment in uranium exploration, or the acceleration of advanced reactor designs that could use alternative fuel cycles. Moreover, the paper’s projection that 2013 would be a definitive “crisis year” may be overly deterministic, given the inherent uncertainties in mining, market pricing, and international cooperation.

In conclusion, the paper highlights a genuine vulnerability in the nuclear fuel supply chain: the reliance on a relatively small pool of secondary resources that were projected to dwindle within a short horizon. It underscores the strategic importance of military uranium stockpiles as a potential buffer but also points out the political and logistical challenges of mobilizing those reserves for civilian use. For policymakers, the study suggests that ensuring long‑term nuclear fuel security will require a multifaceted approach—expanding primary mining, enhancing re‑processing capacity, fostering transparent international agreements on stockpile sharing, and possibly establishing a global strategic uranium reserve. Without such measures, the risk of supply shortages could impede the growth of nuclear energy at a time when many countries view it as a low‑carbon component of their energy mix.