Nuclear Issues

129 Items

Sequoyah Nuclear Power Plant near Chattanooga, Tennessee.

Photorush/Wikimedia Commons

Journal Article - Nature Energy

Increase in Frequency of Nuclear Power Outages Due to Changing Climate

| July 05, 2021

Climate-related changes have already affected operating conditions for different types of energy system, in particular power plants. With more than three decades of data on changing climate, we are now in a position to empirically assess the impact of climate change on power plant operations. Such empirical assessments can provide an additional measure of the resilience of power plants going forward. Here I analyse climate-linked outages in nuclear power plants over the past three decades. My assessment shows that the average frequency of climate-induced disruptions has dramatically increased from 0.2 outage per reactor-year in the 1990s to 1.5 in the past decade. Based on the projections for adopted climate scenarios, the average annual energy loss of the global nuclear fleet is estimated to range between 0.8% and 1.4% in the mid-term (2046–2065) and 1.4% and 2.4% in the long term (2081–2100).

Three Mile Island nuclear power plant

cdc.gov/phil

Analysis & Opinions - Belfer Center for Science and International Affairs, Harvard Kennedy School

How to Deal with Increasingly Complex Safety-Critical Technologies

| Mar. 28, 2019

The authors analyze the 1979 Three Mile Island nuclear accident and the recent back-to-back crashes of two Boeing 737 Max jets and make policy recommendations for the regulation of increasingly complex technologies.

Book Chapter - Routledge

Nuclear Disarmament, Nuclear Energy, and Climate Change

| March 2019

Preventing nuclear war and avoiding catastrophic climate change are two of the most basic challenges facing human civilization in the twenty-first century. While these are separate issues, these challenges are linked in several ways, and both may be affected by the future of nuclear energy. For nuclear energy to provide any substantial part of the low-carbon energy needed in the second half of the twenty-first century would require dramatic growth. This chapter provides an overview of the constraints and risks of nuclear energy growth on that scale, and the necessary steps to address them. In particular, use of nuclear energy at that scale would place unprecedented demands on global systems for verification, control, and security for weapons-usable nuclear materials. Deep reductions in nuclear arms and their eventual prohibition will also require new approaches to managing the vast global stocks of weapons-usable nuclear materials. Politically, nuclear energy may not be able to grow on the scale required unless governments and publics are confident that it will not contribute to the spread of nuclear weapons, creating another link between climate mitigation and nuclear nonproliferation and disarmament.

teaser image

Analysis & Opinions - The Diplomat

With Growth of Coal Power Plants, Vietnam's Future Is Grim

| January 12, 2017

On January 12, 2017, the academic journal Environmental Science & Technology published a study by researchers from Harvard University, Greenpeace, and the University of Colorado Boulder titled “Burden of Disease from Rising Coal-Fired Power Plant Emissions in Southeast Asia.” Based on official data on the future installation of coal-fired power plants in Southeast Asia and atmospheric transport modelling, the research group presented a grim picture of regional air pollution due to emissions from these plants.

Lesson one for Rick Perry: The Energy Department doesn’t produce much energy

Gage Skidmore

Analysis & Opinions - The Conversation

Lesson one for Rick Perry: The Energy Department doesn’t produce much energy

| December 14, 2016

A former governor of Texas – the state that produces more crude oil, natural gas, lignite coal, wind power and refined petroleum products than any other – would seem to be a natural choice for secretary of energy. Yet, assuming he is confirmed by the Senate, Rick Perry will face a paradox.

Discussion Paper - Managing the Atom Project, Belfer Center

The Three Overlapping Streams of India's Nuclear Power Programs

| April 15, 2016

As India’s civilian nuclear energy program expands with the assistance of international nuclear suppliers, it creates new potential pathways to the acquisition of fissile material that could be diverted for military purposes. A key question is whether and how India’s civilian and military nuclear facilities are separated. In this discussion paper from the Belfer Center’s Project on Managing the Atom, Kalman A. Robertson and John Carlson argue that India has not established a complete and verifiable separation of its civilian and military nuclear programs. The authors recommend steps for India to take under its safeguards agreement with the International Atomic Energy Agency to provide assurances to all states that components of its civilian program are not contributing to the growth of its nuclear arsenal. These steps include renouncing options that would facilitate the use of safeguarded items to produce unsafeguarded nuclear material, and placing the proliferation-sensitive components of its nuclear power industry under continuous safeguards.

Analysis & Opinions - Bulletin of the Atomic Scientists

The Experts on Nuclear Power and Climate Change

| December 17, 2015

"Chinese President Xi Jinping reaffirmed at the global climate change conference in Paris that China pledged to achieve peak carbon dioxide emissions by around 2030, and to get around 20 percent of its primary energy from non-fossil sources by 2030. In 2014, China’s non-fossil energy consumption accounted for 11.2 percent of total energy use—hydro power was 8 percent, nuclear power was about 1 percent, and non-hydro renewable energy was around 2 percent—which is very close to the target of 11.4 percent set for 2015. Still, coal supplied the majority (66 percent) of China's total energy consumption in 2014, and oil accounted for about 18 percent of the energy mix. Natural gas, at 5 percent, still accounted for a relatively small share. To double the share of non-fossil sources by 2030, what role can nuclear power play?"

Announcement - Managing the Atom Project, Belfer Center

2016-2017 Harvard Nuclear Policy Fellowships

| December 15, 2015

The Project on Managing the Atom offers fellowships for pre-doctoral, post-doctoral, and mid-career researchers for one year, with a possibility for renewal, in the stimulating environment of the Belfer Center for Science and International Affairs at the Harvard Kennedy School. The online application for 2016-2017 fellowships opened December 15, 2015, and the application deadline is January 15, 2016. Recommendation letters are due by February 1, 2016.

Journal Article - Taylor and Francis Science & Global Security

China's Uranium Enrichment Complex

| October 23, 2015

New public information allows a fresh estimate of China's current and under-construction uranium enrichment capacity. This paper uses open source information and commercial satellite imagery to identify and offer estimates of the capacity of China's 10 operating enrichment facilities, located at 4 sites, using centrifuge technology most likely based on adapting Russian technology. The total currently operating civilian centrifuge enrichment capacity is estimated to be about 4.5 million separative work units/year (SWU/year), with additional capacity estimated to be about 2 million SWU/year under construction. Also China could have an enrichment capacity of around 0.6 million SWU/year for non-weapon military uses (i.e., naval fuel) or dual use. These estimates are much larger than previous public estimates of China's total enrichment capacity. Further expansion of enrichment capacity may be likely since China will require about 9 million SWU/year by 2020 to meet the enriched uranium fuel needs for its planned nuclear power reactor capacity of 58 gigawatts-electric (GWe) by 2020 under its policy of self-sufficiency in the supply of enrichment services.